equal steel angle iron 1sell based on theoretical/actual weight 2material:Q235B,Q345B,SS400,S275JR.. 3origin:tangshan, hebei steel angle1.equal angle, unequal angle2.Stabdard: GB/T 9787, GB/T9788, JIS, ASTM, EN3.Size: 20*20*3.0mm--250*250*30mm4.Application: -various building structures, such as beams, bridges, transmisson towers, lifting or transporting machines, shipping, industrial boilers- ...