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I-beam is a kind of high-efficiency section of the economic section with more optimized cross-sectional area allocation and more reasonable strength-to-weight ratio, which is named because its cross-section is the same as the English letter "H". Because all parts of the H-beam are arranged at right angles, the H-beam has the advantages of strong bending resistance, simple construction, cost saving and light structural weight in all directions, and has been widely used.

I shaped steel is widely used, mainly in various civil and industrial building structures; Various large-span industrial factories and modern high-rise buildings, especially in areas with frequent seismic activity and industrial factories under high-temperature working conditions; Large bridges with high load-bearing capacity, good cross-sectional stability, and large spans are required; Heavy equipment; Highways; Ship skeleton; Mine support; Foundation treatment and dam engineering; Various machine components.

I-beam is mainly used for beams and Du members in industrial and civil structures. Steel structure load-bearing support for industrial structuresSteel piles and supporting structures for underground engineering Petrochemical and electric power industrial equipment structures Long-span steel bridge components Shipbuilding and machinery manufacturing frame structures Train, automobile, tractor girder supports, port conveyor belts, high-speed baffle supports.