... +/-0.001mm 3)ISO9001&14001&SGS & BV Certification. Item NO. CNC precision machinery lathe partsMaterialsIron, aluminum, steel, copper, plastic, carbon steel, nylon ... per the customer’s requirementsMinimum order quantitynegotiableBusiness scopeCNC center machining, drilling, turning, grinding, tapping, mould design and processing, casting, sheet mental ...