Welded Wire Mesh: Mesh:1/4",3/8",1/2",5/8",3/4",1" ,2" etc. Surface treatment:Gi and PVC. factory: 26 years ISO9001: ... 1/2"12.7mm x 12.7mm16,17,18,19,20,21,22,235/8" x 5/8"16mm x 16mm18,19,20 ... ,19,20,211" x 1/2"25.4mm x 12.7mm16,17,18,19,20,211-1/2" x 1-1/2"38mm x 38mm14,15,16 ... Welded Mesh:OpeningWire DiameterIn inchIn metric unit(mm)1/2" x 1/2"12.7mm x 12.7mm16,17,18,19,20 ...