| | 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. | |

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