... the surface Product No./NameJJ-00106 / CNC machining for tools spare part Machining Capability1) Material: Aluminum, Aluminum alloy, stainless steel, Copper ... , milling, tapping, drilling, polishing, punching, etc... 4) Tolerance: +/-0.002 cm5) Appliacation Fields: engine parts, industrial components, Communications,,aerospace, electronics ... , also accord with GB6414 CNC machining for tools spare part