{
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  "contentType": "B2B sourcing guide",
  "title": "Aluminum Foil Roll Supplier: Does Width Drift Along a Roll?",
  "h1": "Aluminum Foil Roll Supplier: Does Width Drift Along a Roll?",
  "slug": "aluminum-foil-roll-supplier-width-drift",
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  "seoTitle": "Aluminum Foil Roll Supplier: Does Width Drift Along a Roll?",
  "seoDescription": "Check finished-roll foil width at several unwind positions before accepting cutter-box fit, dispensing performance and a supplier tolerance.",
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    "household foil width tolerance",
    "foil roll unwind inspection",
    "finished roll width",
    "foil cutter box fit",
    "foil slitting drift",
    "private label foil specification",
    "roll edge measurement",
    "foil sampling plan"
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  "author": {
    "name": "Rocky Zhang"
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    "name": "Pending verification",
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  "datePublished": "2026-10-23T01:53:57+00:00",
  "dateModified": "2026-10-23T01:53:57+00:00",
  "audience": [
    "B2B importers",
    "Distributors",
    "Private-label purchasing teams"
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  "primaryAnswer": "Ask the aluminum foil roll supplier to define the finished foil width, measurement position, instrument, conditioning and agreed tolerance. Measure identified samples near the start, middle and end of representative finished rolls without stretching the foil. Record individual widths and cutter-box fit at each location. ISO 7271 addresses general foil dimensional tolerances, but the buyer must confirm whether its scope and limits suit the exact retail SKU.",
  "quickTakeaway": "Approve the finished-roll width range together with the matching cutter box.",
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      "url": "https://runjiapaper.com/private-label-aluminum-foil-rolls-cutter-box/",
      "anchor": "Foil cutter box specification"
    },
    {
      "url": "https://runjiapaper.com/contact/",
      "anchor": "Send Runjia Your RFQ"
    }
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    {
      "name": "ISO 7271:2011, Aluminium foil dimensional tolerances",
      "url": "https://www.iso.org/standard/53665.html",
      "buyerUse": "Addresses dimensional tolerances for aluminium foil and thin strip for general purposes.",
      "scopeLimit": "It does not certify a Runjia roll or replace an agreed finished-roll inspection plan."
    },
    {
      "name": "European Commission, Food contact materials legislation",
      "url": "https://food.ec.europa.eu/food-safety/chemical-safety/food-contact-materials/legislation_en",
      "buyerUse": "Explains the EU food-contact framework and its scope for materials used with food.",
      "scopeLimit": "It does not approve a Runjia SKU, test result, or shipment."
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  "sections": [
    {
      "heading": "Direct Answer",
      "answer": "Ask the aluminum foil roll supplier to define the finished foil width, measurement position, instrument, conditioning and agreed tolerance. Measure identified samples near the start, middle and end of representative finished rolls without stretching the foil. Record individual widths and cutter-box fit at each location. ISO 7271 addresses general foil dimensional tolerances, but the buyer must confirm whether its scope and limits suit the exact retail SKU. Quick takeaway: Approve the finished-roll width range together with the matching cutter box."
    },
    {
      "heading": "Quick Decision Box",
      "answer": "Buyer decision Direct guidance Best suited for This review suits retailers and distributors sourcing household foil rolls packed in dispensing cartons. Check first Nominal and observed width at named unwind positions Main sourcing risk Do not accept only a start-of-roll width reading when fit is critical. Ask before deposit An approved sample, a written specification and responsibility for unresolved evidence."
    },
    {
      "heading": "Is This Aluminum Foil Roll Supplier Review Right for Your Market?",
      "answer": "This review suits retailers and distributors sourcing household foil rolls packed in dispensing cartons. A bulk converter buying wide parent foil needs a different sampling plan. The aluminum foil roll supplier should receive the exact cutter-box internal width and blade arrangement. Width data alone cannot establish thickness, length, alloy or food-contact suitability."
    },
    {
      "heading": "How should finished width be measured?",
      "answer": "Identify each retail roll, then unwind short sections at agreed start, midpoint and end positions. Lay foil flat without pulling it and measure perpendicular to the web direction at defined points. Note tears, folds or curled edges separately so they are not mistaken for true width. Assign an owner to this specification decision."
    },
    {
      "heading": "What pattern signals a production issue?",
      "answer": "Compare every reading with the approved nominal width and range. A gradual shift can point to slitting or web-guidance changes; isolated narrow readings may be edge damage. Treat these as investigation hypotheses until machine records and retained samples support a cause. Keep this observation with the approved sample record."
    },
    {
      "heading": "How does carton geometry matter?",
      "answer": "Test dispensing and cutter access using the exact printed carton, core and roll diameter. A nominal width that is technically in tolerance can still fit poorly if the carton has little clearance. Ask for a same-spec packed sample before a private-label artwork run. Use identical conditions for a fair comparison."
    },
    {
      "heading": "How should repeat orders be controlled?",
      "answer": "Keep the width drawing, cutter-box revision, sampled roll IDs and readings. Define when a new blade set, core, foil source or box die line triggers reapproval. A carton approval is not a substitute for width checks on later lots. Request any aluminum foil roll supplier deviation in writing before purchase approval."
    },
    {
      "heading": "What Should Comparable Samples Show?",
      "answer": "Control point What to request Why it matters Foil Nominal and observed width at named unwind positions Detects along-roll drift Carton Internal clear width and cutter alignment Checks dispensing fit Lot Roll IDs and sampling plan Connects observations to delivery"
    },
    {
      "heading": "Why Do Quotations Differ?",
      "answer": "A aluminum foil roll supplier quotation must be compared on one written specification. Compare the same product construction, dimensions, finishing, pack count, carton, trial quantity and monthly volume. Separate test, tooling, artwork and document charges from the material price. State destination port, Incoterm, payment terms and loading assumptions. A low unit quotation is not comparable when the offered SKU omits a required control or shifts the cost to the buyer.\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph."
    },
    {
      "heading": "Which Buyer Calculation Helps?",
      "answer": "Illustrative drift: if one roll reads 299.5, 300.0 and 300.4 mm at three positions, the observed spread is 0.9 mm. These are hypothetical figures, not a Runjia result or a proposed acceptance tolerance. Keep the denominator consistent across every aluminum foil roll supplier offer.\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph."
    },
    {
      "heading": "When Should the Buyer Pause?",
      "answer": "Do not accept only a start-of-roll width reading when fit is critical. Do not stretch thin foil during measurement. Do not infer carton compatibility from foil width alone."
    },
    {
      "heading": "What Belongs in the RFQ?",
      "answer": "Field Buyer instruction 1 foilwidth product format, GSM or thickness, coating or material construction and intended use 2 Roll or sheet size, core or perforation, approved sample and exact SKU ID 3 Pack count, carton dimensions, artwork, barcode and retained reference 4 Trial and monthly volume, MOQ by SKU, target date and loading estimate 5 Destination port, Incoterm, payment term and required document scope\nExport Manager Note For this aluminum foil roll supplier program, freeze the technical decision, approved sample and written specification before deposit. A passing sample does not guarantee every repeat lot. Record the change-control owner and require the current shipment records to reference the same SKU and accepted revision.\nNeed a Same-Spec Review? Send the aluminum foil roll supplier format, construction, dimensions, packing, volume, destination, sample ID and unresolved decision. Request a comparable offer with deviations listed in writing. Discuss a Same-Spec RFQ: WhatsApp +8618605361201\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph."
    },
    {
      "heading": "Need a Same-Spec Review?",
      "answer": "Send the aluminum foil roll supplier format, construction, dimensions, packing, volume, destination, sample ID and unresolved decision. Request a comparable offer with deviations listed in writing.\nDiscuss a Same-Spec RFQ: WhatsApp +8618605361201"
    },
    {
      "heading": "Copyable RFQ Wording",
      "answer": "Please quote the attached aluminum foil roll supplier specification and identify any deviations. Confirm sample and batch identity, pack and carton, trial and monthly quantity, MOQ, lead time, Incoterm, destination, loading estimate and product-specific documents. Separate verified test results from unverified statements. Do not substitute material or artwork without written approval."
    },
    {
      "heading": "Buyer Checklist Before Deposit",
      "answer": "☐ Product format, GSM or thickness, coating and dimensions are approved. ☐ Core, perforation or cutter/shape details match the sample. ☐ Pack count, carton, artwork and barcode are frozen. ☐ Sample ID, acceptance method and retained benchmark are recorded. ☐ MOQ, trial and monthly volume, target date and loading are agreed. ☐ Destination, Incoterm, payment and document scope appear in the PI. ☐ Importer compliance owner and change-control contact are named."
    },
    {
      "heading": "What Can the Evidence Actually Prove?",
      "answer": "A aluminum foil roll supplier supplier statement, application trial, certificate, food-contact report and batch record have different purposes. Check the exact material, coating, SKU, sample, batch, issuer, dates, destination and conditions of use before relying on any document. Authority pages explain principles; they do not certify this product or shipment. Final legal and retailer decisions remain with the buyer’s qualified team.\nSource Supports Does not prove ISO 7271:2011, Aluminium foil dimensional tolerances Addresses dimensional tolerances for aluminium foil and thin strip for general purposes. It does not certify a Runjia roll or replace an agreed finished-roll inspection plan. European Commission, Food contact materials legislation Explains the EU food-contact framework and its scope for materials used with food. It does not approve a Runjia SKU, test result, or shipment."
    },
    {
      "heading": "How Should the Aluminum Foil Roll Supplier Decision Be Handed Off?",
      "answer": "Ask the aluminum foil roll supplier to photograph the measurement setup and identify the finished roll, not only the parent coil. Match the box revision to the measured roll before artwork approval.\nA clear exception needs written approval. Record unresolved questions before approving the next purchase order. Keep the original report with the retained reference sample."
    },
    {
      "heading": "Related Runjia Product Resources",
      "answer": "Use the aluminum foil roll supplier buying question to review the matching product pages. Household aluminum foil rolls . Foil cutter box specification ."
    },
    {
      "heading": "Frequently Asked Questions",
      "answer": "Does ISO 7271 set my retail-box clearance? No. Agree the finished carton geometry and trial separately. Why measure several unwind positions? A single opening sample cannot show later width change. Can edge folds distort a reading? Yes. Record damage separately from flat-web width. Should the cutter box be included in approval? Yes. Fit and dispensing depend on the actual box and core. Does width prove foil thickness? No. Specify and inspect thickness separately.\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\nRequest a Comparable Quote From Runjia Send the aluminum foil roll supplier format, dimensions, construction, approved sample ID, intended use, packing, monthly volume, destination and document list. Send Specifications: WhatsApp +8618605361201 Send Runjia Your RFQ"
    },
    {
      "heading": "Request a Comparable Quote From Runjia",
      "answer": "Send the aluminum foil roll supplier format, dimensions, construction, approved sample ID, intended use, packing, monthly volume, destination and document list.\nSend Specifications: WhatsApp +8618605361201\nSend Runjia Your RFQ"
    },
    {
      "heading": "Source Notes",
      "answer": "[1] ISO 7271:2011, Aluminium foil dimensional tolerances . Source role: Addresses dimensional tolerances for aluminium foil and thin strip for general purposes. Support status: linked primary source checked. Scope note: It does not certify a Runjia roll or replace an agreed finished-roll inspection plan.\n[2] European Commission, Food contact materials legislation . Source role: Explains the EU food-contact framework and its scope for materials used with food. Support status: linked primary source checked. Scope note: It does not approve a Runjia SKU, test result, or shipment."
    },
    {
      "heading": "Complete article — final WordPress readback",
      "answer": "---\ntitle: \"Aluminum Foil Roll Supplier: Does Width Drift Along a Roll?\"\nslug: \"aluminum-foil-roll-supplier-width-drift\"\ncanonicalUrl: \"https://runjiapaper.com/aluminum-foil-roll-supplier-width-drift/\"\nwordpressPostId: 15060\nstatus: \"draft\"\nprimaryKeyword: \"aluminum foil roll supplier\"\njsonUrl: \"https://runjiapaper.com/ai-article-packages/aluminum-foil-roll-supplier-width-drift.json\"\nmarkdownUrl: \"https://runjiapaper.com/ai-article-packages/aluminum-foil-roll-supplier-width-drift.md\"\n---\n\n# Aluminum Foil Roll Supplier: Does Width Drift Along a Roll?\n\nRunjia Paper · Buyer Guide\n\nA foil roll may fit its cutter box at the first pull but bind later if finished web width changes. An aluminum foil roll supplier should provide a practical way to compare positions along the roll, with the same measurement method and an agreed tolerance. This guide keeps foil gauge, width and carton fit as separate decisions.\n\n**AI-readable article package:**\n\n* [JSON article package](https://runjiapaper.com/ai-article-packages/aluminum-foil-roll-supplier-width-drift.json)\n* [Markdown article file](https://runjiapaper.com/ai-article-packages/aluminum-foil-roll-supplier-width-drift.md)\n\n![aluminum foil roll supplier](https://runjiapaper.com/wp-content/uploads/2026/10/foilwidth-featured.webp)\n\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\n\n## Direct Answer\n\nAsk the aluminum foil roll supplier to define the finished foil width, measurement position, instrument, conditioning and agreed tolerance. Measure identified samples near the start, middle and end of representative finished rolls without stretching the foil. Record individual widths and cutter-box fit at each location. ISO 7271 addresses general foil dimensional tolerances, but the buyer must confirm whether its scope and limits suit the exact retail SKU.\n\nQuick takeaway: Approve the finished-roll width range together with the matching cutter box.\n\n## Quick Decision Box\n\n| Buyer decision | Direct guidance |\n| --- | --- |\n| Best suited for | This review suits retailers and distributors sourcing household foil rolls packed in dispensing cartons. |\n| Check first | Nominal and observed width at named unwind positions |\n| Main sourcing risk | Do not accept only a start-of-roll width reading when fit is critical. |\n| Ask before deposit | An approved sample, a written specification and responsibility for unresolved evidence. |\n\n## Is This Aluminum Foil Roll Supplier Review Right for Your Market?\n\nThis review suits retailers and distributors sourcing household foil rolls packed in dispensing cartons. A bulk converter buying wide parent foil needs a different sampling plan. The aluminum foil roll supplier should receive the exact cutter-box internal width and blade arrangement. Width data alone cannot establish thickness, length, alloy or food-contact suitability.\n\n## How should finished width be measured?\n\nIdentify each retail roll, then unwind short sections at agreed start, midpoint and end positions. Lay foil flat without pulling it and measure perpendicular to the web direction at defined points. Note tears, folds or curled edges separately so they are not mistaken for true width. Assign an owner to this specification decision.\n\n## What pattern signals a production issue?\n\nCompare every reading with the approved nominal width and range. A gradual shift can point to slitting or web-guidance changes; isolated narrow readings may be edge damage. Treat these as investigation hypotheses until machine records and retained samples support a cause. Keep this observation with the approved sample record.\n\n## How does carton geometry matter?\n\nTest dispensing and cutter access using the exact printed carton, core and roll diameter. A nominal width that is technically in tolerance can still fit poorly if the carton has little clearance. Ask for a same-spec packed sample before a private-label artwork run. Use identical conditions for a fair comparison.\n\n## How should repeat orders be controlled?\n\nKeep the width drawing, cutter-box revision, sampled roll IDs and readings. Define when a new blade set, core, foil source or box die line triggers reapproval. A carton approval is not a substitute for width checks on later lots. Request any aluminum foil roll supplier deviation in writing before purchase approval.\n\n## What Should Comparable Samples Show?\n\n| Control point | What to request | Why it matters |\n| --- | --- | --- |\n| Foil | Nominal and observed width at named unwind positions | Detects along-roll drift |\n| Carton | Internal clear width and cutter alignment | Checks dispensing fit |\n| Lot | Roll IDs and sampling plan | Connects observations to delivery |\n\n## Why Do Quotations Differ?\n\nA aluminum foil roll supplier quotation must be compared on one written specification. Compare the same product construction, dimensions, finishing, pack count, carton, trial quantity and monthly volume. Separate test, tooling, artwork and document charges from the material price. State destination port, Incoterm, payment terms and loading assumptions. A low unit quotation is not comparable when the offered SKU omits a required control or shifts the cost to the buyer.\n\n![household aluminum foil roll product detail illustrative detail](https://runjiapaper.com/wp-content/uploads/2026/10/foilwidth-product-detail.webp)\n\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\n\n## Which Buyer Calculation Helps?\n\nIllustrative drift: if one roll reads 299.5, 300.0 and 300.4 mm at three positions, the observed spread is 0.9 mm. These are hypothetical figures, not a Runjia result or a proposed acceptance tolerance. Keep the denominator consistent across every aluminum foil roll supplier offer.\n\n![household aluminum foil roll sample comparison illustrative detail](https://runjiapaper.com/wp-content/uploads/2026/10/foilwidth-sample-comparison.webp)\n\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\n\n## When Should the Buyer Pause?\n\n* Do not accept only a start-of-roll width reading when fit is critical.\n* Do not stretch thin foil during measurement.\n* Do not infer carton compatibility from foil width alone.\n\n## What Belongs in the RFQ?\n\n| Field | Buyer instruction |\n| --- | --- |\n| 1 | foilwidth product format, GSM or thickness, coating or material construction and intended use |\n| 2 | Roll or sheet size, core or perforation, approved sample and exact SKU ID |\n| 3 | Pack count, carton dimensions, artwork, barcode and retained reference |\n| 4 | Trial and monthly volume, MOQ by SKU, target date and loading estimate |\n| 5 | Destination port, Incoterm, payment term and required document scope |\n\n### Export Manager Note\n\nFor this aluminum foil roll supplier program, freeze the technical decision, approved sample and written specification before deposit. A passing sample does not guarantee every repeat lot. Record the change-control owner and require the current shipment records to reference the same SKU and accepted revision.\n\n## Need a Same-Spec Review?\n\nSend the aluminum foil roll supplier format, construction, dimensions, packing, volume, destination, sample ID and unresolved decision. Request a comparable offer with deviations listed in writing.\n\n[Discuss a Same-Spec RFQ: WhatsApp +8618605361201](https://wa.me/8618605361201)\n\n![household aluminum foil roll qc packing illustrative detail](https://runjiapaper.com/wp-content/uploads/2026/10/foilwidth-qc-packing.webp)\n\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\n\n## Copyable RFQ Wording\n\nPlease quote the attached aluminum foil roll supplier specification and identify any deviations. Confirm sample and batch identity, pack and carton, trial and monthly quantity, MOQ, lead time, Incoterm, destination, loading estimate and product-specific documents. Separate verified test results from unverified statements. Do not substitute material or artwork without written approval.\n\n## Buyer Checklist Before Deposit\n\n* ☐ Product format, GSM or thickness, coating and dimensions are approved.\n* ☐ Core, perforation or cutter/shape details match the sample.\n* ☐ Pack count, carton, artwork and barcode are frozen.\n* ☐ Sample ID, acceptance method and retained benchmark are recorded.\n* ☐ MOQ, trial and monthly volume, target date and loading are agreed.\n* ☐ Destination, Incoterm, payment and document scope appear in the PI.\n* ☐ Importer compliance owner and change-control contact are named.\n\n## What Can the Evidence Actually Prove?\n\nA aluminum foil roll supplier supplier statement, application trial, certificate, food-contact report and batch record have different purposes. Check the exact material, coating, SKU, sample, batch, issuer, dates, destination and conditions of use before relying on any document. Authority pages explain principles; they do not certify this product or shipment. Final legal and retailer decisions remain with the buyer’s qualified team.\n\n| Source | Supports | Does not prove |\n| --- | --- | --- |\n| ISO 7271:2011, Aluminium foil dimensional tolerances | Addresses dimensional tolerances for aluminium foil and thin strip for general purposes. | It does not certify a Runjia roll or replace an agreed finished-roll inspection plan. |\n| European Commission, Food contact materials legislation | Explains the EU food-contact framework and its scope for materials used with food. | It does not approve a Runjia SKU, test result, or shipment. |\n\n## How Should the Aluminum Foil Roll Supplier Decision Be Handed Off?\n\nAsk the aluminum foil roll supplier to photograph the measurement setup and identify the finished roll, not only the parent coil. Match the box revision to the measured roll before artwork approval.\n\nA clear exception needs written approval. Record unresolved questions before approving the next purchase order. Keep the original report with the retained reference sample.\n\n## Related Runjia Product Resources\n\nUse the aluminum foil roll supplier buying question to review the matching product pages. [Household aluminum foil rolls](https://runjiapaper.com/household-aluminum-foil-rolls-from-china/). [Foil cutter box specification](https://runjiapaper.com/private-label-aluminum-foil-rolls-cutter-box/).\n\n## Frequently Asked Questions\n\n### Does ISO 7271 set my retail-box clearance?\n\nNo. Agree the finished carton geometry and trial separately.\n\n### Why measure several unwind positions?\n\nA single opening sample cannot show later width change.\n\n### Can edge folds distort a reading?\n\nYes. Record damage separately from flat-web width.\n\n### Should the cutter box be included in approval?\n\nYes. Fit and dispensing depend on the actual box and core.\n\n### Does width prove foil thickness?\n\nNo. Specify and inspect thickness separately.\n\n![household aluminum foil roll factory application illustrative detail](https://runjiapaper.com/wp-content/uploads/2026/10/foilwidth-factory-application.webp)\n\nIllustrative image of the product and buyer inspection context; not a Runjia test record or factory photograph.\n\n## Request a Comparable Quote From Runjia\n\nSend the aluminum foil roll supplier format, dimensions, construction, approved sample ID, intended use, packing, monthly volume, destination and document list.\n\n[Send Specifications: WhatsApp +8618605361201](https://wa.me/8618605361201)[Send Runjia Your RFQ](https://runjiapaper.com/contact/)\n\n## Source Notes\n\n[1] [ISO 7271:2011, Aluminium foil dimensional tolerances](https://www.iso.org/standard/53665.html). Source role: Addresses dimensional tolerances for aluminium foil and thin strip for general purposes. Support status: linked primary source checked. Scope note: It does not certify a Runjia roll or replace an agreed finished-roll inspection plan.\n\n[2] [European Commission, Food contact materials legislation](https://food.ec.europa.eu/food-safety/chemical-safety/food-contact-materials/legislation_en). Source role: Explains the EU food-contact framework and its scope for materials used with food. Support status: linked primary source checked. Scope note: It does not approve a Runjia SKU, test result, or shipment.\n"
    }
  ],
  "comparisonTables": [
    {
      "title": "Purchase decision comparison",
      "columns": [
        "Control point",
        "Request",
        "Buyer purpose"
      ],
      "rows": [
        [
          "Foil",
          "Nominal and observed width at named unwind positions",
          "Detects along-roll drift"
        ],
        [
          "Carton",
          "Internal clear width and cutter alignment",
          "Checks dispensing fit"
        ],
        [
          "Lot",
          "Roll IDs and sampling plan",
          "Connects observations to delivery"
        ]
      ]
    }
  ],
  "rfqTable": [
    {
      "title": "RFQ fields",
      "columns": [
        "RFQ field",
        "What to record"
      ],
      "rows": [
        [
          "1",
          "foilwidth product format, GSM or thickness, coating or material construction and intended use"
        ],
        [
          "2",
          "Roll or sheet size, core or perforation, approved sample and exact SKU ID"
        ],
        [
          "3",
          "Pack count, carton dimensions, artwork, barcode and retained reference"
        ],
        [
          "4",
          "Trial and monthly volume, MOQ by SKU, target date and loading estimate"
        ],
        [
          "5",
          "Destination port, Incoterm, payment term and required document scope"
        ]
      ]
    }
  ],
  "buyerChecklist": [
    "☐ Product format, GSM or thickness, coating and dimensions are approved.",
    "☐ Core, perforation or cutter/shape details match the sample.",
    "☐ Pack count, carton, artwork and barcode are frozen.",
    "☐ Sample ID, acceptance method and retained benchmark are recorded.",
    "☐ MOQ, trial and monthly volume, target date and loading are agreed.",
    "☐ Destination, Incoterm, payment and document scope appear in the PI.",
    "☐ Importer compliance owner and change-control contact are named."
  ],
  "faq": [
    {
      "question": "Does ISO 7271 set my retail-box clearance?",
      "answer": "No. Agree the finished carton geometry and trial separately."
    },
    {
      "question": "Why measure several unwind positions?",
      "answer": "A single opening sample cannot show later width change."
    },
    {
      "question": "Can edge folds distort a reading?",
      "answer": "Yes. Record damage separately from flat-web width."
    },
    {
      "question": "Should the cutter box be included in approval?",
      "answer": "Yes. Fit and dispensing depend on the actual box and core."
    },
    {
      "question": "Does width prove foil thickness?",
      "answer": "No. Specify and inspect thickness separately."
    }
  ],
  "cta": {
    "whatsapp": "https://wa.me/8618605361201",
    "contact": "https://runjiapaper.com/contact/",
    "requestedInputs": [
      "foilwidth product format, GSM or thickness, coating or material construction and intended use",
      "Roll or sheet size, core or perforation, approved sample and exact SKU ID",
      "Pack count, carton dimensions, artwork, barcode and retained reference",
      "Trial and monthly volume, MOQ by SKU, target date and loading estimate",
      "Destination port, Incoterm, payment term and required document scope"
    ]
  },
  "sourceNotes": [
    {
      "name": "ISO 7271:2011, Aluminium foil dimensional tolerances",
      "url": "https://www.iso.org/standard/53665.html",
      "sourceRole": "Addresses dimensional tolerances for aluminium foil and thin strip for general purposes.",
      "supportStatus": "Primary source linked; applicability is limited to its stated scope.",
      "scopeNote": "It does not certify a Runjia roll or replace an agreed finished-roll inspection plan."
    },
    {
      "name": "European Commission, Food contact materials legislation",
      "url": "https://food.ec.europa.eu/food-safety/chemical-safety/food-contact-materials/legislation_en",
      "sourceRole": "Explains the EU food-contact framework and its scope for materials used with food.",
      "supportStatus": "Primary source linked; applicability is limited to its stated scope.",
      "scopeNote": "It does not approve a Runjia SKU, test result, or shipment."
    }
  ],
  "contact": {
    "website": "https://runjiapaper.com/",
    "whatsapp": "https://wa.me/8618605361201",
    "email": "sales4@runjianewmaterial.com"
  },
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      "Draft only; no reviewer has been verified.",
      "datePublished records draft creation for schema compatibility, not public WordPress publication.",
      "Authority references do not certify a Runjia SKU, batch, facility or shipment.",
      "Numerical scenarios are illustrative, not measured Runjia performance.",
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