| 1. | Specification for parallel screw threads of whitworth form
惠氏直螺纹规范 |
| 2. | Technical specification for whitworth threads taps
惠氏螺纹丝锥.技术条件 |
| 3. | Open - ended wrenches - bs and whitworth
开口扳手.第2部分: bs和惠氏螺纹 |
| 4. | Thread rolling cylindrical dies for whitworth threads
惠氏螺纹滚丝轮 |
| 5. | Wyeth is still discussing the trial ' s guidelines with the fda
惠氏仍在和fda讨论具体的实施方案。 |
| 6. | Manufacturing tolerances on the threaded portion for whitworth threads taps
惠氏螺纹丝锥.螺纹公差 |
| 7. | Thread rolling flat dies for whitworth threads
惠氏螺纹搓丝板 |
| 8. | Circular screwing dies for whitworth threads
惠氏螺纹圆板牙 |
| 9. | British standard whitworth thread b . s . w
英制惠氏标准螺纹 |
| 10. | Nut taps for whitworth threads
惠氏螺纹螺母丝锥 |
