Column made of steel. Most of the columns of large and medium-sized industrial plants, large-span public buildings, high-rise buildings, light mobile houses, working platforms, trestle bridges and brackets are made of steel columns. There are many types of steel columns, the most common ones are factory steel columns and high-rise steel columns. Among them, the steel columns of high-rise projects are commonly called "steel columns", and their function is to support the core of the entire building. The common high-level steel columns include box columns, cross columns, and round pipe columns.

Cross column

Round pipe string