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rod retainer (в буровых установках Sergey Old Soldier) | |||
stick clamp | |||
rod lock (elena.kazan) |
зажим штанги: 8 phrases in 7 subjects |
Construction | 1 |
General | 2 |
Geophysics | 1 |
Mining | 1 |
Occupational health & safety | 1 |
Oil / petroleum | 1 |
Oil and gas technology | 1 |