1.Material:Metal(SS,Aluminum) 2.Precision CNC Turning,Drilling,Boring,Milling 3. ... .SURFACE TREATMENTPolishing,chrome,zinc,nickel plating,anodize,power coating, aluminum oxide, brushing.PROCESS AND TEST QUIPMENTS Wire-cut, electric discharge ... .SURFACE TREATMENTPolishing,chrome,zinc,nickel plating,anodize,power coating, aluminum oxide, brushing.PROCESS AND TEST QUIPMENTS Wire-cut, electric discharge ...