... .material: Q235B, Q345B, SS400, A992Gr50, S235JRG2, S235JR, S275JR and s355jr steel angle1.equal angle, unequal angle2.Stabdard: GB/T 9787, GB ... .Application: -various building structures, such as beams, bridges, transmisson towers, lifting or transporting machines, shipping, industrial boilers- Framework of all kinds of ...