首页 >  Term: rig, jackknife, or folding mast
rig, jackknife, or folding mast

The type mast that can be folded for moving, as contrasted with the standard derrick, which has to be completely dismantled and re-erected.

0 0

创建者

  • JJD
  •  (Gold) 2369 分数
  • 100% positive feedback
© 2024 CSOFT International, Ltd.