12 cm GB steel I-beam 5 meters long, how much weight can loft?
12 cm standard I-beam 5 meters long attic can do bearing 34.2kNm.
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.
