Product Description Material Carbon Steel: SAE1020, SAE1045, Cr12, 40Cr, Y15Pb, 1214Letc Alloy Steel: 20CrMnTi, 16MnCr5, 20CrMnMo, 41CrMo, 17CrNiMo5etc Brass/Bronze: HPb59-1, H70, CuZn39Pb2, CuZn40Pb2, C38000, CuZn40 etc Machining Process Gear Hobbing, Gear Milling, Gear Shaping, Gear Broaching, Gear Shaving, Gear Grinding and Gear Lapping Tolerance Control ±0.02 mm Heat Treatment Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding.....…