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Pulley system efficiency tests with Petzl Maestro, I'd S, Pro Traxion and RollClip | Rigging Lab Academy
Petzl - Meet us at the International Tree Climbing Championship (ITCC) and test the new #ROLLCLIP #pulleycarabiner! [EN] http://bit.ly/petzl-rollclip-EN --- [FR] http://bit.ly/petzl-rollclip-FR [DE] http://bit.ly/petzl-rollclip-DE [IT] http://bit.ly ...
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