... -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 ... to support and protect the wall corner in construction .Specifications of GI Corner Beads for your reference : Width( ...