1)steel channel 2)standards :GB,JIS,DIN,ASTM,BS 3)all kinds of materials to meet your special requirements 4)best exporter 1)steel channel2)standards :GB,JIS,DIN,ASTM,BS3)all kinds of materials to meet your special requirements 4)best exporter StandardH (mm)B(mm)D(mm)Theoretical weight (kg/m)BSC2*1*1/8512532.37BSC2*1*3/16512553.46C3*3.576353.45.2C3*4.176354.36.1C3*576376.67.4C3*6764098.9C4*4. ...