socket pipe : 38 phrases in 18 subjects |
Bridge construction | 1 |
Caspian | 1 |
Construction | 2 |
Firefighting and fire-control systems | 1 |
Hydraulic engineering | 2 |
Makarov | 1 |
Mechanics | 2 |
Military | 1 |
Oil / petroleum | 2 |
Oil and gas technology | 1 |
Oilfields | 1 |
Pipelines | 1 |
Plastics | 1 |
Plumbing | 1 |
Sakhalin S | 1 |
Technology | 8 |
Thermal engineering | 3 |
Welding | 8 |