1. Gear shaft 2. M 0.5 - 6 3. Various materials 4. Various heat ... 5. CNC 1. We produce various gears, including gear shaft.2. Material: carbon steel such as C45, 20CrMnTi, 40Cr, 42CrMo or ... Frequency Quenching, Carburizing Quenching and so on.4. Item: M0.5,M1,M1.5,M1.7,M2,M2.5,M3,M4,M5,M6 and ...