Their main function is to let in natural light while retaining an uninterrupted view of nature. Sliding glass windows provide relief in membership fares for more than 600 Railways. It is not only one kind of window, but also a living concept. Invention and glass. Sliding glass windows have several outstanding features such as energy efficiency, working parts which are at once practical and highly beautiful, glass thickness up to 22mm. Whether the project is a vitally needed security screen for a residence or a commercial gate entry system, craftsmanship combined with customer service is our dedication to you. from the first meeting (renovation) of your space, to finish. At Onyx, you're in the first-class passengers section all the way to get there as easily and quietly as possible for our customer!