... 2.Zinc,Nickel or Chromate,plating,anodize types of springs/types of extension springs/drum type spring We ... -General Milling machine13sets-Wire-cut Machine120sets-Grinding Machine10sets-Hand Press5set-Lathe50sets-Planer3sets-Screwing Machine etc.3sets-Hardness ... components.Main processing are stamping, casting,CNC machining,hand polishing,automatic polishing and plastic injecting.We are looking ...