... drawing or sample 4.ISO9001:2008 5.Carbon steel ductile iron seamless pipe fittings casting partCompany introductionDalian Wills Machine Co. Ltd ... 3, Inspection:4, Raw Material ExportCasting:1. Casting Material: Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2. Standard: ISO ... Agent, we supply all the necessary assistant. 2011 ductile iron seamless pipe fittings casting part