Machining part made of copper: 1 Tight tolerance 2 Precision machining ... 4 Your drawings welcome CNC machining parts1.Material: Aluminum, copper, brass, bronze, stainless steel, zinc, carbon steel, iron, plastic, PVC ... 6.Machining processing: Cutting, welding, punching, drilling, turning, milling, grinding, rolling, stamping, cold drawing, bending, spinning, forging, etc7.OEM service availableNingbo ...