... ductile iron,grey iron,stainless steel,carbon steel,aluminum, brass,etc.4.working process:sand casting,investment casting, die casting, forging,stamping,etc.5 ... 3, Inspection:4, Raw Material ExportCasting1. Casting Material: Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2. Standard: ISO ... the necessary assistant. 2011 pipe fittings of carbon steel casting part/foundry work