GI Corner Beads Thickness: 1.0-2.0mm Wing width:18*18,20*20,25*25,30*30,etc Length:2.4-3 ... .0m QC:ISO 9001:2008 2012 Drywall GI Corner Beads Material:galvanised plate ,stainless ... steel ,pvc, Aluminium,and etcCatogory :Expanded Corner Bead, Perforated Corner Bead, Corner Bead with Reinforce Flange, Corner Bead with creased Reinforce Flange.Characteristics :The ...