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device for triggering of a thread connection between two sections of one rohrstrangs and surface, stempelträger and klemmbacke and device for holding the bottom section of a rohrstrangs drehfesten
device for triggering of a thread connection between two sections of one rohrstrangs and surface, stempelträger and klemmbacke and device for holding the bottom section of a rohrstrangs drehfesten
Apparatus for disconnecting the lower threaded end of an upper section from the upper threaded end of a lower section of pipe string extending through the bore of an underwater wellhead.
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