steel angle iron dimensions 2.material: Q195, Q235, SS400, ST37-2 3.size: 25x16x3mm--200x125x18mm 4.thinkness:3-18mm 1.unequal angle steel 2.material: Q195, Q235, SS400, ST37-23.size: 25x16x3mm--200x125x18mm4.thinkness:3-18mm Unqual Angle Steel steel angle iron dimensions