أنواع رأس المسمار آلة

China  Bimetal  machine screw head types Diameter Φ15mm-350mm   Designing   Screw structure and compression ratio can be designed according  to different products  & different output requirement.   Materials 38CrMoAlA  (JIS SACM645) SKD61  Application   Suit for hdpe ,ldpe, lldpe recycling. Nitride Case Depth 0.5mm-0.8mm Technology 1)Longer time Gas Nitriding treatment  2)special anti-wear & abrasion alloy (bimetallic)...