Strut Channels are usually used to be installed as steel supporting system.Such as pipe system installing and other structures. Detailed Description 1.Dimensions: 41 x 41mm or 41 x 21mm 2.Lengths: Either 6M or 3 Metre Lengths etc.3.Style: Plain or SlottedUnistrut Channel1)Size:41mm*21mm or 41mm*41mm back to back 41*41mm, 41*62mm,41*82mm,and so on2)Thickness:1.5mm, 1.8mm,1.9mm,2.0mm, 2.3mm,2.5mm , ...