Spec.:As per buyer's drawing Material:grey iron,ductile iron,steel casting,aluminum Process:sand ,precision ... ,welding parts. We have 18-years experiences with casting parts. Material can be reached cast iron,grey iron,ductile iron,steel ... ,railway parts,automobile parts,parts. Vessel parts etc.. 2.Product instruction: • Material:grey iron,ductile iron,steel casting,stainless steel, • Process:sand ...