 |
| |||
| ★ 左旋螺纹 | |||
| 反扣螺纹 | |||
| 反扣 | |||
| 左螺纹 | |||
| 左旋螺纹; 反螺纹 | |||
| |||
| 左旋螺纹; 倒牙 | |||
|
left-hand thread : 10 do fraz, 4 tematyki |
| Architektura | 1 |
| Ropa / ropa naftowa | 2 |
| Technika i technologia | 4 |
| Wiercenie | 3 |
|
| |||
| ★ 左旋螺纹 | |||
| 反扣螺纹 | |||
| 反扣 | |||
| 左螺纹 | |||
| 左旋螺纹; 反螺纹 | |||
| |||
| 左旋螺纹; 倒牙 | |||
|
left-hand thread : 10 do fraz, 4 tematyki |
| Architektura | 1 |
| Ropa / ropa naftowa | 2 |
| Technika i technologia | 4 |
| Wiercenie | 3 |