A bolt pair (4) and a hanger (1) are fixedly connected above the two axial sides of a bracket (2) mounting hole or a slot respectively.
所述托架(2)安装孔或槽径向两侧的上方分别有螺栓副(4)与吊架(1)固定连接。
2
Bolt (n. ) metal secured into a drilled hole in the rock as means of protection. Often accompanied by a hanger, an eyelet to which a carabiner can attach.