- portable derrick crane
- portable slewing crane
- 轻便: light; portable; handy
- 转臂: tumbler
- 起重机: crane; derrick; crab; freigh ...
- 转臂起重机: bracket swing crane; derick crane; derrick crane; rotating derrick
- a型转臂起重机: a derrick; jinni wink; jinni-wink
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