A useful sample request tells the supplier what to send, how to identify it, why it will be tested and how it differs from proposed bulk production. “Send your best roll” produces an untraceable demonstration.

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Subject: Cling film sample — [application] — [market] — [project code]

Please confirm samples against the attached matrix. Mark each roll and parcel with sample code, material/SKU revision, width, length, thickness, core, pack version and sample/production reference. State every feature that will differ in bulk production.

Our trial covers [equipment/pans], [conditions], roll fit, unwind/cutting and [document review]. Please provide sample cost, courier data, dispatch date and the MOQ/lead-time assumptions linked to each sample.

Attach one matrix

FieldSample ASample B
Material/SKU revision[ ][ ]
Width × length × thickness[ ][one controlled change]
Core and loaded OD[ ][ ]
Pack/cutter version[ ][ ]
Bulk difference[ ][ ]

Protect identity after delivery

Photograph parcel and roll labels before testing. Keep a retained sample. A stock, hand-prepared, pilot and normal-production roll support different conclusions. Use the sample test checklist after receipt and YIYUAN's product range to fill the requested dimensions.