This part is using in Door,the raw material is ADC12. The main processes are Die Casting,CNC Milling,CNC Turning. Here're some types of surface finish,Powder coating: Powder coating is a type of surface finish where a dry powder is applied to the die casting part and then heated to form a protective and decorative layer. It can provide a wide range of colors and finishes. Anodizing: Anodizing is an electrochemical process that creates a durable and corrosion-resistant layer on the surface of the die casting part. It can also provide various colors and finishes. Painting: Painting is a common surface finish technique where a layer of paint is applied to the die casting part. It can provide a wide range of colors and finishes, including metallic or matte. The rib thickness of this Door Hardware product is large and not easy to fill, the perimeter is gear shape structure, the tooth related coefficient calculation is very important,and the product structure is symmetrical,the distributio…