| Disc thickness t(mm) | Standard Materials |
| 0.2 to <1.25 | CK67, 51CrV4 |
| 1.25 to 6.0 | 51CrV4 |
3 | >6.0 to 14.0 | 51CrV4 |
General surface treatment | Add lubricating oil after phosphoric acid treatment | |
Special surface treatment | Electroplating of galvanized, cadmium, chromium, metal film paint and other electroplating may produce carbonized layers. If special surface treatment is required, please discuss with our company. |