Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.
Rock bolts are commonly used in civil engineering and mining to reinforce and stabilize rock masses. A rod or bar is inserted into a drilled hole, which is then grouted in place using cement or resin. FRP Rock bolts withstand tensile forces and evenly distribute load, eventually increasing overall strength. They control rock movements, reduce deformation and prevent collapses.