Check if the quantity on the packing list matches the order quantity and product style. Verify if the carton markings and color labels are consistent with the product. Compare with the approved sample or reference sample for material, style, color, and surface finish to ensure consistency.
Measure dimensions to verify compliance with tolerance requirements. Moisture test: not allowed to exceed 12 degrees, with no fewer than 3 test points. No missing or extra parts are allowed. Must comply with customer order requirements. Check if the assembly connection opens and closes smoothly without jamming, and ensure screws are tightened properly without cracking the back panel. After installation, the moving parts should operate smoothly.








