... steel,H beam,h steel,h&i beam,beam steel We supply high quality H-beam steel with reasonable price. Including Chinese standard, Japanese ... 5*7 300*300*10*15 500*200*10*16 175*175*7.5*11 340*250*9*14 582*300* ... 396*199*7*11 700*300*13*24 244*175*7*11 400*200*8*13 792*300*14* ... frequency welding and automatic submerged arc welding) B. Kinds of Structural steel framings, such as box beams, box columns etc. ...