2015年11月13日星期五

container gantry crane

portal crane manufacturerChina's ancient irrigation farmland with orange is the prototype of the crane boom type. In the 14th century, Western Europe in the human and animal driven rotating arm type crane. Appeared at the beginning of the 19th century, the bridge crane; Crane important wear parts such as axle, gear and sling started using metal erials, container gantry craneand adopts hydraulic drive

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