I-beam, also known as steel beam, is a long strip of steel with a cross-section in the shape of an I, and its specifications are indicated in millimeters by the waist height (h) * leg width (b) * waist thickness (d), such as "I-160"
*88*6" represents a W-shaped steel beam with a waist height of 160mm, leg width of 88mm, and waist thickness of 6mm. The specifications of the W-shaped steel beam can also be denoted by model numbers.
The model number indicates the waist height in centimeters, e.g., 16#. For I-beams with the same waist height but different leg heights and waist thicknesses, add "a", "b", "c" to the right of the model number accordingly.
For differentiation, such as 32a#, 32b#, 32c#, etc. I-beams are widely used in various architectural structures, bridges, vehicles, supports, and machinery.