18732807193 anchor bolt is a tool for measuring the force, with a small, explosion-proof anti-static, high strength, corrosion resistance, light weight, portable, simple operation, and security features, the bolt is widely used in coal, defense, tunnels and traffic multiple tunnels and transportation operations; hollow bolt grouting medium suitable geological conditions, permanent support and advance support. Anchor bolt through the hollow rod of the pressure grouting, can achieve consolidation broken rock, cut off groundwater and corrosion rod bolt use of coal mine tunnel, tunnel support, engineering slope protection, highways, bridges, municipal engineering.