... 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 ... construction, mining, electric, electronic, furniture industry etc.6.Machining processing: Cutting, welding, punching, drilling, turning, milling, ...