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。
The entire door type scaffold is characterized in that the connecting bar and the upright rod are welded together through a welding hole on the upper end of the upright rod;
它包括立杆、连接棒、安 全销，其特征：通过立杆上端的焊接孔，将连接棒和立杆焊接在一起；
应用推荐