1.Material:Q195,Q235 2.Surface:HDG/powder coated/paint 3.Demension can be customized slotted angle bar,angle steel for shelf Sotted angle bar for shelfSize(mm)Size toleranceW.TThickness tolerance20*20,25*25,30*30±0.8mm 3-4mm±0.4mm 36*36,38*38,40*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- ...