Supplier: Ningbo Tianze Machinery Technology Co.,
Please confirm with the supplier: Model / reference, Key specifications / compatibility, Samples, Export markets, Supply capacity.
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 materials fiber.