| NO. | 参数代号 | 类型 | 材质 | 对应图纸 |
| 631 | SRHK20-23 | SR | HK | - | 632 | SRHK20-24 | SR | HK | - |
| 633 | SRHK20-27 | SR | HK | - | 634 | SRHK25-28 | SR | HK | - |
| 635 | SRHK25-29 | SR | HK | - | 636 | SRHK25-31 | SR | HK | - |
| 637 | SRHK25-32 | SR | HK | - | 638 | SRHK30-33 | SR | HK | - |
| 639 | SRHK30-35 | SR | HK | - | 640 | SRHK30-38 | SR | HK | - |
| 641 | SRC3-5 | SR | C | - | 642 | SRC3-6 | SR | C | - |