FRP bolt is a kind of composite material, which is made of glass fiber and reinforced resin through pultrusion and winding with rough surface or fully threaded rod body, and is composed of a tray, nuts and other components.

It is mainly used for the support of coal mine rock roadway, semi-coal rock roadway, coal wall, surrounding rock face, slope anchoring and other various underground works.

Yes, 16mm, 18mm, 20mm, 22mm, 24mm, 27mm, 32mm, etc. The length is generally 1000-2600mm