... Low density 4.No conductivity. Concrete Plastic Rebar BFRP Basalt Fiber Rebar BFRP basalt rebar / Basalt fiber composite bar is high strength ... ). 3. density, the density of fiber reinforced composite rebar is 1.9-2.1g/cm3,only general about 1 ... coal mines, tunnels bolt ,roads, slope, etc. support the permanent anchor; 4, communication building, electronic equipment, factory, building nuclear fusion, ...