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