... mainly used in contruction. The merit of welded mesh is productive,low cost,widely using,easily acceptable. ... and other fields,Mainly including galvanized mesh and PVC coated mesh.Specifications of Welded MeshOpeningWire Diameter ... 20,21,221/2" x 1/2"12.7mm x 12.7mm16,17,18,19,20,21,22 ... 20,211" x 1/2"25.4mm x 12.7mm16,17,18,19,20,211-1/2" ... unit(mm)1/2" x 1/2"12.7mm x 12.7mm16,17,18,19,20,213/4" ...