maching shaft with die forging 1,material: 42CrMo;45# 2,surface: natural color 3,samples available 4, ... OEM is welcome maching shaft with die forging1,material: 42CrMo;45#2,surface: natural color3,samples available4,OEM is ... welcome5,certificate:ISO9001:2008The shaft can be forged of carbon steel,alloy steel and other materials by us,it ...