We design GRP structures and supply solutions including concept development, economic justification, calculations, etc. for any demand. Our engineering team offers Design Services, Fabrication Services, Installation Services of GRP Access Platforms, GRP Handrails, GRP Ladders, Access Hatches and more. Composite system (CS) is a whole consisting of one or more composite ch is a composite the hole with the load bearing function The grid is a composite od function and a sufficient water flow function The cover is a composite a hole with a limited load bearing function, it is only used in combination with the grit in the "roof ventilation cover