... IN SAND,PRECISION/INVESTMETN CASTING OEM SERVICE casting iron valve part --bracket 1.We are manufacturer and exporter in ... casting parts. Material can be reached cast iron,grey iron,ductile iron,steel,carbon steel,stainless steel,copper,brass,bronze ... Vessel parts etc.. 2.Product instruction: • Material:grey iron,ductile iron,steel casting,stainless steel, • Process:sand casting,precision/investment ...