Material: Q235, Q345, SS400, SS540, ST 37, ST 52 etc. Types: equal angle, unequal angle etc. Sizes: from 25mm ... , SS400, SS540, ST 37, ST 52 etc.Types: equal angle, unequal angle etc. Application: framework for all kinds of constuction and engineering.Specifications: DimensionsNominal ... , H type beam, U type beam etc at competitive price and guaranteed quality.