Industrial Roller Sprocket Material: carbon steel as C45, 20CrMnTi, 40Cr, 42CrMo, stainless ... QuenchingProcess: Investment casting, die casting, gravity casting, sand castingMachining: Turning, milling, drilling, grinding, threading, CNC machining, etc.Finishing: Sand blasting, polishing ... offer drawings)Main markets: US, Europe, Asia. South America Industrial Roller Sprocket