1.carbon steel pipe fittings 2.sand casting part 3.CNC machining 4.RICH EXPORT ... iron,grey iron,stainless steel,carbon steel,aluminum, brass,etc.4.working process:sand casting,investment casting, die casting, ... On time delivery6. Working Process: Sand casting, investment casting,die casting,forging,etc.7.Casting Process:Client ... assistant. 2011 pipe fittings of carbon steel casting part/foundry work