| 1. | Steel pipe welding neck flanges with tongue and groove face
榫槽面对焊钢制管法兰 |
| 2. | Finger jointing machines without gluing operation . precision
梳齿榫开榫机.精度 |
| 3. | Integral steel pipe flanges with tongue and groove face
榫槽面整体钢制管法兰 |
| 4. | Steel gauges . metric taper plug gauges with tang
钢制量规.米制榫式锥度塞规 |
| 5. | Steel gauges . metric taper ring gauges with tang
钢制量规.米制榫式锥度环规 |
| 6. | Driving square for hand operated socket wrenches
手动套筒扳手传动方榫和方孔 |
| 7. | Steel gauges . morse taper plug gauges with tang
钢制量规.榫式莫氏锥度塞规 |
| 8. | Steel gauges . morse taper ring gauges with tang
钢制量规.榫式莫氏锥度环规 |
| 9. | Hand operated socket wrenches - driving squares
手动套筒扳手传动方榫和方孔 |
| 10. | Wood . assembly . multiple finger joints . flexion test
木材.组装.多榫接头连接.弯曲试验 |
