... 42CrMo or stainless steel or copper or nylon and so on.3. Heat Treatment: Hardening and Tempering, High Frequency ... Quenching, Carburizing Quenching and so on.4. Item: M0.5,M1,M1.5,M1.7 ... ,M2,M2.5,M3,M4,M5,M6 and so on. 5. We have enough automatic and CNC machines. ... or drawing and meet your need for high precision on teeth of gear.7. Good quality with reasonable price, ...