Brass gear with high precision 1. Material:carbon steel such as C45,20CrMnTi,40Cr,42CrMo 2. High precision 3.Small gear Feature of high precision brass gear•Material: carbon steel such as C45, 20CrMnTi, 40Cr, 42CrMo or stainless steel or copper or nylon and so on•Heat Treatment: Hardening and Tempering, High Frequency Quenching, Carburizing Quenching and so on.•Standard: European or American ...