Material 38crMoAIA,the surface of the screw edge is welded with dual alloys, which can effectively increase the service life of the screw. The imported part alloy steel is used for the easy wear part of the material. After special treatment, the abrasion resistance of the barrel can be effectively improved.
Material：38crMoAIA，Nitriding treatment，surface hardness HV≥900. Depth of nitration case：0.5-0.8mm
Material：38crMoAIA. The surface of the screw edge is welded with dual alloys, which can effectively increase the service life of the screw.
Material：38crMoAIA. The easy-to-wear part of the feed port adopts imported alloy steel. After special treatment, it can effectively improve the wear resistance of the barrel and increase the service life.
Specification：
| Ф35/Ф77 | Ф45/Ф90 | Ф50/Ф105 | Ф55/Ф110 | Ф60/Ф125 | Ф65/Ф120 |
| Ф65/Ф132 | Ф70/Ф140 | Ф75/Ф150 | Ф80/Ф143 | Ф80/Ф156 | Ф92/Ф188 |
