... Rod With excellent mechanical strength and dielectrical prope Model: Fiberglass Reinforced extruded Extension Rod/ Dog Bone/Duct Tube ... like transformers, chocks, switchgears, lightening arrestors, OLTC, Antennas, cable trays, and motor wedges. All pultruded sections for electrical, ... Threaded Rod, Stud, Nut, Bolt & Custom Built sections. Fiberglass Epoxy Pultrusion Rod/Dog Bone/Duct Tube