When in use, the pin pullingdevice has extremely convenient operation, simple structure and relatively low manufacture cost;
使用该拔销装置操作非常方便，结构也较简 单，其制作成本相对较低；
2
The utility model provides a novel supporting pullingdevice which is provided with a screw rod connected with the center of an adjusting supporting body through inner threaded holes.
本实用新型提供了一种新颖的顶拔器，它有一根螺杆与调节支承体的中心内螺孔联接。
3
Synopsis introduced the design, installation and the use of the electric cable runway and pullingdevice, which has achieved good results and improved the efficiency of the labor force.