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北京市第六建筑工程公司三工区水电队,最近研制成功一种新型吊卡,构造见图1。这种吊卡的调整部位在下半部,直接与吊卡连接,可省螺栓一根,还省去钢筋
The Hydropower Group of the Sangong District of Beijing No. 6 Construction Engineering Company recently successfully developed a new type of elevator. The structure is shown in Figure 1. The adjustment part of this kind of elevator is in the lower part, and it is directly connected with the elevator. It can save one bolt and save the rebar.