... quality and competitive in price. We have various kinds of nuts,for example,hexagon thin nuts,round nuts,hexagon flange nuts and ... or according to the customer request. 2. Product range: parts processing, CNC lathe, turning parts, brass turning parts. 3. Surface treatment ... passed ISO9001 and ISO14001 authentication. 10. Process flow diagram If you have any design of the metal parts, please inform us, ...