We firmly believe that quality is the core of a product, and meticulous quality control is a practical manifestation of 'living up to our trust'. Boxin procures authoritative testing instruments in the industry, trains and introduces professional quality inspectors, strictly controls various indicators of products, only to deliver the highest quality products to your hands.
Incoming Material
Verify the material proof, including external dimensions and surface sand hole grade
Slicing
Dimensions and surface sand hole grade
Rough grinding
Dimensions and surface sand hole grade
Fine grinding
Dimensions and surface sand hole grade
Polishing
External dimensions, polishing surface defect level, surface accuracy
Rounding
External dimensions, polishing surface defect level, eccentricity
Coating
Coating requirement index testing, coating surface defect level, coating characteristic testing (adhesion, friction resistance)
Glue Together
External dimensions, surface defect level, eccentricity, surface accuracy
Blacking
External dimensions, paint characteristic testing (adhesion), surface defect level
Final inspection
Dimensions, surface defect level, eccentricity, surface accuracy, coating requirements, coating characteristics (adhesion, friction resistance)
Store
Verify material identification and quantity