1.we can bore a hole with alluvial fan in the wall
2.then we can put the expand plug in the hole.
3.we put the screw with tool in the expand plug.
4.final, we can fix or hang some items.
Type: two types,open and close
Application: Suitable for concrete and dense natural stone, floor, support plate, bracket, railings, windows, doors, curtain walls, machinery, beams, beams, stairs, external finishes, electrical appliances.