... wearing resistance and high corrosion resistance plastic, but also appropriate for processing the nylon plus 20%-40% fiberglass , PC,PVC, ... It is not only improving the grade of the entire injection molding machine, but also providing customers the high quality products. Using ... PVC,PVC,PU,or Plastics. Depth of nitration case0.5 mm~0.8mmHardness of nitration950~1020HVFragility of nitrationLess than ...