ايمني كار با جرثقيل سقفي

Our popular Overhead Crane Operational Safety training course for Spanish-language learners. Visit http://www.buybettertraining.com/overhead-crane-operational-safety-video.aspx to buy this title. Course description:This course covers the dangers associated with lifting and moving a load with an overhead crane, as well as safe procedures that will avoid those dangers..

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