... be customizedStandard: GBSpecifications1)Commodity: Unequal angle steel 2)Material:Q195-Q420,SS400,SS540,A36,S235JR 3) ... STEELSIZE(MM)THICKNESS (MM)THEORETICAL WEIGHT(KG/M)100×5066.85100×5088.99100×7568.04100×7579 ... : Q235B , Q 345B, SS400 ,SS540, S235JR ,ETC.2) Usage: structure construction and electronic tower building3) Weight tolarance: ... .3-9+/-1.2+/-0.64-1210-14+/-1.8+/-0.74-1216-20+/-2.5+/-1.04- ...