... 2.Thickness:1.5mm to 3.0mm 3.Length:3m,5.8m,6m Steel channel1.Thickness:1.5mm--3.0mm2.Length ... :3m,5.8,6.0m3.The size we can provide as bellows ... , W:25--100mm H:15--100mm A:5--50mm B:5--30mm t:1--3mm Surface treatment:hot dip galvanized ... ,2.0mm,2.5mm,2.7mm,3.0mm3.Length:3m,5.8m,6m4.Surface Treatment:hot dipped galvanized, cold galvanized, ...