Industry sprocket 

Material: carbon steel as C45, 20CrMnTi, 40Cr, 42CrMo, stainless steel, nylon

 Heat Treatment: Hardening and Tempering, High Frequency Quenching, Carburizing Quenching

Process: Investment casting, die casting, gravity casting, sand casting

Machining: Turning, milling, drilling, grinding, threading, CNC machining, etc.

Finishing: Sand blasting, polishing, plating, acid treatment, anodizing, painting