... Name:gear,rocker arm,support roller,roller boss,pinion,trunnion,bearing support,support frame,track roller,shell,hub,rudder,sternpost, ... shaft,marine anchor,marine anchor chain,slag pot etc. Material:Carbon steel,low alloy steel:ZG20SiMn,ZG50Mn,ZG35SiMn,ZG35CrMo,ZG35SiMnMo ... casting process characterized by using sand as the mold material.It is relatively cheaper and a sufficiently refractory for ...