I-beams are divided into ordinary I-beams, light I-beams and H-beams. I-beams are mainly used in crossbeam construction. Shanghai Changzheng produces I-beam, if you are interested in I-beam, welcome to consult with our company.
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An I-beam is a metal (usually steel) beam. It's called an I-beam because its cross section looks like a capital letter I in a serif font. It could also be called an H-beam, because if you turn it on its side it looks like a capital letter H in a sans serif font.