1. Material:Q195-Q235-Q345 2.Size :20#,75#,160#,180# 3.it can be slotted. Cold Formed Steel AngleSize(mm)Size toleranceW.TThickness tolerance20*20,25*25,30*30±0.8mm 3-4mm±0.4mm 36*36,40*40±0.8mm 3-5mm±0.4mm 45*45,50*50±0.8mm 3-6mm±0.4mm 56*56±0.8mm 3-8mm±0.4mm 63*63,70*70±1.2mm 4-10mm±0.6mm 75*75,80*80±1.2mm 5-10mm±0.6mm 90*90±1.2mm 6-12mm±0.6mm 100*100,110*110, 125*125,140*140±1.2mm 6-16mm±0.7mm ...