investment casting 1.CNC OEM 2.High Conductivity 3. ... steel,ST52, S355, GS-52.3, ASTMA48Class30BCK45, 1.7218-25CrMo4Sand castingGGG50,GGG30, ASTMA48 class25B, 42CrMo4, C22ductile ... to customer's request process casting,die-casting,CNC lathe works , turning ,finish machining Major product ... ,aluminium & aluminum alloy, brass, etc.2.Process:CNC lathe works , turning ,finish machining.3.Major product ...