... -Beam Steel 1.Standard: GB JIS ASTM EN 2.Material: Q235 S235JR SS400 A36 3. ... I-beamSize: IPEAA100-160 Standard: Q235 S235JR SS400 A36 4.GB I-beamSize: 10#-40# 5.Standard: Q235 S235JR SS400 A36Length ... ,180,200,220,250, 280, 300, 320, 360 9.Standard: GB/T706-1988 Q235 S235JR SS400 A36 DIN1025 St37-2 EN ...