1.carbon steel pipe fittings 2.sand casting part 3.CNC machining 4.RICH ... work together with many good foundries producing steel castings, stainless steel castings, aluminum castings and copper castings. ... ExportCasting1. Casting Material: Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2. Standard: ISO 9001:20083. ... . 2011 pipe fittings of carbon steel casting part/foundry work