... auto 2. Meet your need DS DC gear spur gear for gearboxFeatures:Material: Carbon steel such as C45, 20CrMnTi, 40Cr, ... and so onProcess: Cutting, hobbing, lathe machining, grinding, broaching, thread rolling and so onHeat Treatment: Hardening and Tempering, High Frequency Quenching ... on your special sample or drawing and meet your need for high precision on teeth of gear Good quality with reasonable ...