All PVC/silicone raw materials & auxiliary parts (buckle, color paste, etc.) are 100% batch-inspected on arrival. Verify appearance, hardness, RoHS compliance; eliminate defective materials to avoid cracking, fading and peculiar smell from the source.
Patrol & fixed-point sampling inspection for core processes (dispensing, vulcanization, molding, printing, assembly). Check size/shape consistency with drawings, printing & accessory connection quality; record data and correct deviations in time to prevent batch defects.
100% check for custom styles, random sampling for regular ones. 4D inspection (appearance/size/function/packaging): no burrs/color difference, qualified size tolerance, smooth keychains, non-slip heat-resistant coasters, firm marked packaging. Only qualified products with report delivered.
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