Screw selection of imported Hitachi SKD61 steel , high temperature of 500 degree or less, vacuum hardening, the overall hard HRC52°-55°, good toughness, resistance to stress, barrel iron-based alloy material, wear Economical finish Ra0.4um; for PC, PMMA, or engineering ...

Ningbo Tianze Machinery Technology Co.,    [Rubber & Plastics]   [Plastic & Rubber Machinery Parts]   [2018-10-29 13:38:35 ]