... 横臂伸缩有效行程Effective stroke of boom(mm) 适用筒体直径The applicable diameter of shell(mm) 机座回转角度(rptatomg amg;e of boom(m/min) ...
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通过调整滚轮的中心距，适用不同直径筒体。
Applicable for all cylinder of different diameter by adjusting the trolley center distance.
本实用新型结构简单，成本低廉，方便实用，适用各种直径筒体的焊接操作。
The utility model has the advantages of simple structure, low cost and high convenience and practicability, and the utility model is suitable for the welding operations of various diameter barrels.
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