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