高级铬钼钒钢，表面镀铬防锈，整体经过热处理。起子头上有色标
| 订货号 |  |
 |
|
 |
|
 |
 |
 |
 |
| 00576 | 1.5 | 3.0 | 0.25 | 0.5 | 120 | 4 | 11 | 5 | |
| 00577 | 2.0 | 3.5 | 0.4 | 0.6 | 120 | 4 | 11 | 5 | |
| 00578 | 2.5 | 4.0 | 0.4 | 0.8 | 120 | 4 | 11 | 5 |
