1.Standard:GB 2.Grade:Q 195-235 3.Length:5.3mm-9.5mm U channel1) #10, size: 100 x 48 x 5.3mm, weight per meter: 8.95kg/m 2) #14A, size: 140 x 58 x 6.0mm, weight per meter: 3.372kg/m 3) #14B, size: 140 x 60 x 8.0mm, weight per meter: 15.23kg/m 4) #16, size: 160 x 63 x 6.5mm, weight per meter: 15.52kg/m 5) #18, size: 180 x 68 x 6.5mm, weight per meter: 18.16kg/m 6) #20A, size: 200 x 73 x 6.0mm, ...