Green interior facades aluminum square profiles through an open transparent style long siding is made from aluminum square distance arrangement consisting of common denominator. Using a long board hanging in the keel installation test, visually extent hidden keel system. Aluminum square through the ceiling so thick vertical continuity, simple and elegant appearance with age style. ? At the same time the hidden works for many crowded public places, to facilitate the flow of air, exhaust, cooling, enabling the light distribution, so that the whole space bright and spacious. Aluminum is widely used in the subway square pass between the high-speed rail stations, railway stations, airports, shopping malls, channel, leisure facilities, public health, building facades and other open spaces.