... Surface treatment can be galvanized and PVC coated. 1) Galvanized welded wire mesh:Welded wire mesh galvanized ... DiameterIn inchIn metric unit(mm)1/4" x 1/4"6.4mm x 6.4mm22,23 ... 12.7mm16,17,18,19,20,211-1/2" x 1-1/2"38mm x 38mm14,15,16,17 ... Specifications: Mesh in inchMesh in mmWire guage(BWG)1/2’’ * 1/2’’12.7mm * 12.7mm16,17,18,19 ...