GTI designs and manufactures unbonded pt systems, bonded pt systems, concrete accessories, and related equipment.Zero-Void Encapsulation System (unbonded/bonded), Post-Tensioning Duct (flat, round, tight-radius), Composite Bar Supports (chairs, bolsters, intersectional chairs), Precast Segmental Duct Couplers, SOG Products, Pocket Formers, Concrete Repair Products, Bonded Tendon Accessories (heatshrink, hoses, valves), Equipment (stressing, plasma cutting, sheathing stripper, staplers).