... 3.Capacity:5000 pcs per month 4.Factory price Customized brass precision worm with CNC hobbing Feature of Processing 1) Gear ... precision: ISO Class 4~5 ( Niless gear grinding )2) Heat ... , Powder coating, blackening, Sand blasting, Brushing & ploshing,Electrophoresis etc.OEM & ODM ServiceAvailableDesign SoftwarePRO/E, Auto CAD, Solid Works and Unigraphics ...