GRP manufactures and stocks a complete line of storefront glazing products including extruded profiles for the construction and repair of Kawneer, Bonnell, Vistawall, Amarlite, US Aluminum, YKK, PPG, and Tubelite storefront glass systems. New cross-sections are constantly being developed from a wide variety of materials. A drawing can also be provided to give you an exact dimensional overview of part. Some parts are produced with non-stretch cord embedded in the cross-section to reduce the amount of stretch encountered by the gasket during installation.