... 5mm to 200x400x11.75mm,length 5.8M,6M welded rectangular steel tubesection shape: rectangularmaterial: steelsize:20X30X1.5mm to ... 25-5.0mm,5.25-6.0mm40x80mm0.8-1.0mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm,2.5 ... 25-5.0mm,5.25-6.0mm50x100mm0.9mm, 1.5mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm,2.5- ... 25-5.0mm,5.25-5.75mm60x100mm1.5mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm,2.5-4 ... 25-5.0mm,5.25-5.75mm60x120mm1.5mm, 1.7mm, 1.8mm, 2.0mm, 2.2mm,2.5-4 ...