... investment casting : Casting processMaterailInvestment castingASTMA148class80-40, ASTMA148Class80-50A572GR60, AISI316 stainless steel,ST52, S355, GS-52.3, ASTMA48Class30BCK45, 1.7218-25CrMo4Sand castingGGG50 ... to customer's request process casting,die-casting,CNC lathe works , turning ,finish machining Major product precision machined copper(aluminium or alloy ...