Gate Valve in FC,FCD,SC ,SS material Standard /Non Standard ... experiences with casting parts. Material can be reached cast iron,grey iron,ductile iron,steel,carbon steel,stainless steel,copper,brass,bronze,aluminum ... parts etc.. 2.Product instruction: • Material:steel casting,grey iron,ductile iron stainless steel • Process:sand casting,precision/investment casting • Standard:ASTM ...