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Standard: BS, JIS, ASTM, DIN, EN, GB, AISI
Model Number: 100*68*4.5mm-630*180*17mm
Material : SS 400, ST37-2 , A36, S235 JRG1, Q195,Q235, Q345 etc.
Length : 6 meter, 9 meter ,12 meter
Chinese Standard size : 100*68*4.5mm-630*180*17mm
Standard : GB/T 700-1988
stainless I beam