Puntos clave
- A sample should represent the same density, thickness, formula and surface as the future order.
- Buyers should photograph and record sample measurements before confirming PI details.
- QC should cover surface, color, density, thickness, flatness, edge condition and packing.
- For repeat orders, keep approved samples as a reference for future batches.
Checklist RFQ
- Sample label with grade, density and thickness
- Caliper thickness measurement and weight check
- Surface, color, flatness and edge inspection
- Printing, CNC or screw test if required
- Approved sample retained by buyer and supplier
FAQ
Should buyers approve samples before container orders?
Yes. Sample approval reduces mismatch risk in density, surface, color and application performance.
What should a QC checklist include?
It should include thickness, density, sheet weight, surface condition, color, flatness, edge quality, packing and label requirements.
Guias de compra hoja PVC expandido
Nuevas guias comerciales para proveedor de hoja PVC expandido China, PVC foam imprimible, CNC, embalaje, tolerancia y muestras.