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Steel column is one of the main components of steel structure plant. Steel column, as the name suggests, is a column made of steel. Its section forms have two kinds -- solid belly column and lattice column. As for the steel column device, after the purchase part enters the field, the components shall be reinspected during the installation, and the attributes such as serial number, size, shape and connecting square hole shall be corresponded to the drawings one by one before the device construction of the components can be carried out.