From its Pittsburgh-area plant, Liberty Pultrusions manufactures engineered fiberglass-reinforced plastic (FRP) pultrusions, including structural profiles, electrical shapes and custom continuous-section parts. The U.S.-based company has worked in pultrusion for more than 40 years and has produced over 200 custom-designed shapes, backed by internal precision machining and structural fiberglass fabrication. Its corrosion-resistant, lightweight composites are used where steel, aluminum or timber would be vulnerable to rust, conductivity or weight.