The wing of ordinary I-beam and light I-beam gradually thinner from the root to the side, with a certain Angle. The type of ordinary I -beam and light I-beam is expressed by the Arabic number of its waist height in centimeters. . I-beam is mainly used in building structure, curtain wall engineering, mechanical equipment ,vehicle manufacturing and so on.

Rebar is commonly known as hot rolled ribbed bar. The grade of ordinary hot rolled steel bar consists of the minimum yield point of HRB and grade. H, R and B are the first letters of hotrolled, Ribbed and Bars respectively.

The wing of ordinary I-beam and light I-beam gradually thinner from the root to the side, with a certain Angle. The type of ordinary I -beam and light I-beam is expressed by the Arabic number of its waist height in centimeters. . I-beam is mainly used in building structure, curtain wall engineering, mechanical equipment ,vehicle manufacturing and so on.

Rebar is commonly known as hot rolled ribbed bar. The grade of ordinary hot rolled steel bar consists of the minimum yield point of HRB and grade. H, R and B are the first letters of hotrolled, Ribbed and Bars respectively.

The wing of ordinary I-beam and light I-beam gradually thinner from the root to the side, with a certain Angle. The type of ordinary I -beam and light I-beam is expressed by the Arabic number of its waist height in centimeters. . I-beam is mainly used in building structure, curtain wall engineering, mechanical equipment ,vehicle manufacturing and so on.

The wing of ordinary I-beam and light I-beam gradually thinner from the root to the side, with a certain Angle. The type of ordinary I -beam and light I-beam is expressed by the Arabic number of its waist height in centimeters. . I-beam is mainly used in building structure, curtain wall engineering, mechanical equipment ,vehicle manufacturing and so on.