... strength and dielectrical prope Model: Fiberglass Reinforced extruded Extension Rod/ Dog Bone/Duct Tube Electircal Insulation Fiber Reinforced ... are Dog Bone, Corner Angle, Flat, Hat, Rod, Square, Tube, Threaded Rod, Stud, Nut, Bolt.etc According to the costomers ... products are Dog Bone, Corner Angle, Flat, Hat, Rod, Square, Tube, Threaded Rod, Stud, Nut, Bolt & Custom Built sections. Fiberglass ...