... ~14.5mm Length:6-12m CommodityMaterial Size Unit Angle202 , 304 , 316∠ 25 ~∠ 100MTFlat202 , 301 , 30420 ~ 100MTChannel202 , 304 , ... 5 ~[ 20MTStraight Bar301 , 304 , 321 , 3163 ~ 12MTPlain Steel Bars202 , 316 , 304Φ 3 ~ Φ 55MTSquare Bar304 , 202 , 31620 ~80MTHexagon Bar304 , ... 321 ,316S 10 ~ S 60MT Main ProductsZ steel structure,C shaped steel stucture,channel ...