auto casting parts 1)grey iron,ductile iron,steel,stainless steel 2)Sand, Investment cast 3)OEM service 4)100% inspection auto/car engine parts detailed:auto casting partscasting,casting parts,auto casting partsTechnical process:sand casting,investment casing,resin sand casting,lost foam castingMaterial:grey iron,ductile iron,malleable iron,steel,stainless steel,various brass & aluminium, ...