ldpe / lldpe تهب برميل المسمار صب واحد

China zhoushan oushengda (osd screw) Bimetal  ldpe / lldpe blown single blowing molding screw barrel   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 ...