Window Systems Specific plastic window systems for each brand and for the individual requirements of local markets. Each system consists of a large number of single profiles, compatible with each other, which are the result of long years of research and steady product development work. Door Systems High Tech profiles offer an elaborate systems technology with high quality and security standard, not only for entrance doors, but also for folding and sliding doors. Shutter Systems French shutters and roller shutter slats in various designs and colours constitute an exhaustive range of products which is completed by a modular roller shutter box with integrated insect screen and sun protection blind. Structure Systems Fence systems, balcony railings and cladding systems used for curtain walls constitute a seperate range of products. PVC Sheets PVC sheets for numerous different applications. Systems Accessories A large range of products relating to the manufacture of windows, e.g. installation equipment, fittings, screws, window sills, cover strips etc.