1.Material:38CrMoAIA
Nitriding treatment Surface hardness: HV≥900
Nitriding depth:0.5-0.8mm
2. Material: Special stainless steel quenching treatment
hardness: HRC55-58Suitable for the screw is used for transparent plastic products and High corrosion plastic processing, prolonging the life of the screw.
3. Material: Tungsten alloySuface spraying, improve abrasion performance of screw