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| pier (печи) | |||
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| tubing head (Alexander Demidov) | |||
| casing connections (felog) | |||
casing head (Casing heads are of two types according to its hanged casing types: screw casing head and slip casing head.  com.cn Alexander Demidov) | |||
| колонна обвязки: 10 phrases in 7 subjects |
| Architecture | 1 |
| Building structures | 1 |
| Oil / petroleum | 1 |
| Oil and gas technology | 3 |
| Production | 1 |
| Rail transport | 1 |
| Sakhalin | 2 |