... : Fiberglass Reinforced extruded Extension Rod/ Dog Bone/Duct Tube Electircal Insulation Fiber Reinforced Pultruded T Profile/ L Profile ... are Dog Bone, Corner Angle, Flat, Hat, Rod, Square, Tube, Threaded Rod, Stud, Nut, Bolt.etc According to the ... high strength and excellent electrical insulating characteristics for use in a variety of electrical products, like transformers, chocks, switchgears, ...