The invention relates to a handle fixing device of vacuum dust-collector which has a handle tube whose length is adjustable and it can slide along the machine.
要约一种具有可调整长度的把手导管，并能在机身上引滑动的真空吸尘器把手固定结构。
Attach the wall alternately through the adjustable shelf and the bracket fixing, rises and falls mutually, scaffold then along wall on reservation hole cascade fluctuation.
通过活动架和固定架交替附墙，互相升降，脚手架即可沿着墙体上的预留孔逐层升降。
When scaffold work, the adjustable shelf and the bracket fixing use to attach the wall bolt and the wall anchor, two between not relative motions.
当脚手架工作时，活动架和固定架均用附墙螺栓与墙体锚固，两架之间无相对运动。
应用推荐