| spare parts type | Other | material | 38CrMoAlA |
| machinery test report | Provided | video outgoing-inspection | Provided |
| key selling points | High Rigidity | Weight (KG) | 200 |
| Material | 38CrMoAlA/42CrMo | Tempering hardness | 240-280HV |
| Depth of nitrogen layer | 0.6-0.8mm | Roughness of the surface | Ra0.4um |
| Straightness of screw | 0.015mm | Depth of CR coating | 0.025-0.085mm |