I-Beam
I-beam, also known as Universal Beam, is a long strip of steel with a cross-section in the shape of an I-beam. I-beams are divided into ordinary I-beams and lightweight I-beams. It is a section steel with a I-shaped shape. I-beams are mainly divided into ordinary I-beams, lightweight I-beams, and wide flange I-beams. According to the ratio of flange to web height, it can be further divided into wide, medium, and narrow flange I-beams.