... Approved by CCS, GL, LR, ABS, BV, DNV, RINA, NK, KR Steel profiles -bulb flat We are a steel manufactory in ... products approved by CCS,ABS,GL,LR,DNV,BV,NK,KR,RINA etc classification society.Standards according to GB/T9945-2001 ... see below: sizedimension (mm)sectional area(cm2)theoretical weight (kg/m)bt80×58055.414.2580×666.214.88100×710078.746.86100 ...