Rig breaking capacity (performance)
18 July 2017Rig up
18 July 2017Rig, jackknife or folding mast
The type of mast that can be folded for moving as contrasted with the standard derrick, which has to be completely dismantled and re-erected.
The type of mast that can be folded for moving as contrasted with the standard derrick, which has to be completely dismantled and re-erected.
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