| spare parts type | Screw | material | 38CrMOALA Nitrided Steel |
| machinery test report | Provided | video outgoing-inspection | Provided |
| key selling points | Long Service Life | Weight (KG) | 500 |
| Product name | Screw and Barrel | Screw type | Single/ Double |
| Double screw type | Conical/Parallel | Alloy thickness | ≥1.7mm |
| Alloy hardness | HRC58 | Nitriding depth | 0.5-0.7mm |
| Nitriding hardness | HV860-980 |