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RiggerandSignalmanVideos
4 个视频
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00:19
8
Rigger and Signalman – Basic Hoist Signals part 4
RiggerandSignalmanVideos
00:24
8
Rigger and Signalman – Basic Hoist Signals part 3
RiggerandSignalmanVideos
00:35
12
Rigger and Signalman – Basic Hoist Signals part 2
RiggerandSignalmanVideos
00:58
13
Rigger and Signalman – Basic Hoist Signals part 1
RiggerandSignalmanVideos