... : carbon steel as C45, 20CrMnTi, 40Cr, 42CrMo, stainless steel, nylon Worm gear Material: carbon steel as C45, 20CrMnTi, 40Cr, 42CrMo, stainless ... drawings)Main markets: US, Europe, Asia. South AmericaKaren SunValen Machinery Parts., LtdWeb: http://www.valensprocket.com http://dahaisprocket.preview.alibaba.comTel ...