| 1. | Hubbed socket welding steel pipe flanges with raised face 突面带颈承插焊钢制管法兰 |
| 2. | Processing guidelines - electric socket welding of pp Pp承插热熔方法说明 |
| 3. | Valves - socket weldings ends for steel valves 阀门.钢阀门的槽焊接端 |
| 4. | Valves - socket welding ends for steel valves 阀门.钢阀门的套节焊接端 |
| 5. | Hubbed socket welding steel pipe flanges with ring - joint face 环连接面带颈承插焊钢制管法兰 |
| 6. | Weld including b - weld and socket weld 注:焊接包括对焊和承插焊。 |
| 7. | Hubbed socket welding steel pipe flanges with male and female face 凹凸面带颈承插焊钢制管法兰 |
| 8. | Hubbed socket welding steel pipe flanges with tongue and groove face 榫槽面带颈承插焊钢制管法兰 |
| 9. | Shipbuilding - ships ' 280k and 350k socket welding pipe flanges 造船.船用280k和350k承口焊接管法兰 |
| 10. | Forged steel socket welding pipe fittings 锻钢制承插焊管件 |