What does "No. 14 of I-beam No. 14" mean?
14 represents an I-beam of a height of 140 mm
14# I-beam, 14 represents I-beam with a height of 140 mm
I-beam is also called steel girder (English name Universal Beam). It is a strip of steel with an I-shaped section. I-beam is divided into ordinary I-beam and light I-beam, H steel three. It is a section steel whose shape is trough.
