欧美妺子操一操_JULIA国产一区二区在线精品_无码吃逼操视频_黄色一级香蕉视频_WWW.cok操逼_亚洲色区爱_色噜噜影视_熟女日本视频_欧美 激情 另类 自拍_亚洲精品乱码久久久久久蜜桃明_淑女乱伦第一页_精品九九久久_ⅴ天堂在线_成人性爱在线性爱电影_国产V日韩

Define the light steel structure buildings

Guangzhou Steel teach you: Define the light steel structure buildings

Steel structure building is constructed mainly of steel material, it is one of the main building construction types. In recent years, steel structure building technology plays an increasingly important role in our construction technologies.

Steel structure of light steel structure engineering is widely used in various construction areas in factories, warehouses, airports, multi-residential, following a brief knowledge of light steel construction.

Light steel structure is a very vague concept, there is no strict definition. The following configuration can be called light steel construction: a, constructed of cold-formed steel part; Second, constructed of lightweight hot-rolled steel (beams, channels, H-beam, L-beam, T-beam, etc.) consisting of ; three, by the light beam welding (beams, channels, H-beam, L-beam, T-beam, etc.) consisting of construction; four, the pipe, the pipe, rectangular pipe structure constituted; five thin steel plate welded member configured constituted; 6, construction of various components from the above composition.

Thus, the use of a very wide range of light steel structure, concrete building has many advantages that are not. Guangzhou Steel