Rock Bolt, Resin Capsule, Welded Wire Mesh manufacturer / supplier in China, offering Full Thread Insulated Fiberglass Anchor Bolt for Coal Mine Tunnel FRP Rod, Hollow 32mm 25mm Gfrp Fiberglass Composite Chemical Anchor Bolts FRP Rock Bolts, Epoxy Fiberglass Reinforced Plastic FRP GRP Threaded Rod Screw Bolt and Nut and so on.