Steel h beams 1.Size:100*100mm--900*300mm. 2.Grade:A36,S235JR,SS400,Q235 3.Application:building and construction Steel h beams standard size 1.Origion: Tangshan city, Hebei Province2.Standard: GB, ASTM, DIN, JIS.ect3.Steel material: Q195,Q235,Q345,A36,S235JR,SS400.ect4.Surface finish: black or galvanized( hot dipped& electric galvanize)5.Specification: 100*100mm—900*300mm, length: 6-12m, also if ...