... parts .Equipped with over 100 sets of CNC and punching machines, 100 sets of instrument lathe,2 ... . Our dedication, plus the company's knowledge and experience,have resulted in satisfied customers.We are ... coupling for our USA client over six years and the annual order quantities are over ten million. ... , Polishing, Knurling,Tapping, Threading, Burnishing, Slab Milling, Face Milling and End Milling.