turning parts 1. material: mild steel 2. ISO certificate 3. tolerance:0.05mm-0.2mm turning and milling machining parts1. material: spring steel2. ISO certificate3. tolerance:0.05mm-0.2mmSpecifications1. Precision CNC Maching Parts 2. ISO Certificated 3.Tolerance:0.005~0.02mm 4. Capacity: 0.5~1020mm 5. Delivery: one time, one step 1) Material: Steel, Brass, Copper, Stainless steel, Plastic, ...