Machining part made of copper: 1 Tight tolerance 2 Precision machining 3 Various materials available 4 ... Your drawings welcome CNC machining parts1.Material: Aluminum, copper, brass, bronze, stainless steel, zinc, carbon steel, iron, plastic, PVC ... .Metal Process: stainless steel, carbon steel, steel, aluminum alloy, brass, copper etc.4.Surface Treatment: Zn (Cr3 RoHS free or Cr60 ...