All-Thread FRP Bolt: The rod is threadedover the whole length, i. e. "All-Thread"; 

High Corrosion Resistance: The base materialsused by the bolt are durable materials, and they are molded throughthe composite process. The life span is up to 100 years. They canbe used as permanent support materials; 

High Tensile Strength: The load isapproximately double that of a steel bar with the samediameter; 

Low Weight: The weight is only 1/4 that of asteel bar with the same diameter. Therefore, the labor intensity isgreatly reduced, and the transportation cost is reduced at the sametime; 

Anti-static: It has no electricalconductivity, and no sparks will be produced when being cut. It isparticularly suitable for high gas zones; 

Non-flammable: It is non-flammable and hashigh thermal isolation; 

Cuttability: It avoids damages to cutterheads, and does not delay excavation;