Steel is a certain cross-sectional shape and size of steel bar, four varieties of steel (plates, tubes, profiles, wire) one.

Steel is a certain crosssectional shape and dimensions of the steel bar. C-shaped steel is mainly used in steel building purlin, wall beams, can also be combined into its own lightweight roof trusses, brackets and other building components. In addition, it can also be used in other mechanical light manufacturing columns, beams and arms.
Hbeam is a crosssectional area of the distribution of more optimized, strong economic weight ratio is more reasonable and efficient crosssection profiles, since all parts of the H-beam are arranged at right angles, so H-beam in each direction withstrong resistance to bending, simple construction , cost structure and light weight, etc., have been widely used.