The connection rod is a telescopic structure.
连接杆为伸缩结构。
The structure, work principle and application of tubing telescopic unit is introduced.
简要介绍了管柱伸缩器的结构、工作原理及用途。
Box section telescopic boom; Telescopic mechanism; Pinless boom; Single cylinder pin type;
箱型伸缩臂； 伸缩机构； 无销式；单缸插销式；
Box section telescopic boom; Telescopic mechanism; Pinless boom; Single cylinder pin type;
箱型伸缩臂； 伸缩机构； 无销式；单缸插销式；
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