Green wood aluminum side through simple installation and maintenance is also very convenient, since each party through a separate aluminum, free installation and removal without special tools, easy maintenance and repair. Hidden works for many crowded public places, to facilitate the flow of air, exhaust, cooling at the same time, can make light distribution, so that the whole space bright and spacious. Widely used in subway, high-speed rail between stations, railway stations, airports, shopping malls, channel, leisure facilities, public health, building facades and other open spaces. Aluminum square pass specification: bottom width is generally 20-400 mm, height of 20-600 mm, thickness 0.4-3.5 mm Note: The length is 6 meters within any custom, special sizes can be customized according to the specific circumstances, hand-made.