... Q.A contralsteel casting train parts,auto parts1.casting parts material: cast iron,steel,stainless steeletc2.Casting parts process: sand casting,investment casting,etc3.Full quality ... steel,2sandgreen sand3mahinelathe, CNC, drilling machine, milling machine, boring machine, planting machine, machining center4processsand casting, investment casting, lost wax casting, die casting, forging, stamping, ...