... 0mm 4)Length:3-8m 5)Application:decoration 6)Grad 201 304 316 ... , 21 , 22.2 , 23 , 25.4 , 28 , 31.8 , 33, 35, 36, 38.1 , 40 , 41 ... 159 , 168, 219b)Square tube side length (mm)10*10 , 12*12 , 15*15 , 18*18 , 19 ... * 19 , 20*10 , 20*20 , 22* 22 , 23* 11 , 23 *23 , 24* 12 , ... Europe ,Western Europe10) Export Percentage30% - 50%11)Applicationroad lamp facilities , bridge handrail ,expressway railing ...