... /8''10.6mm×10.6mm19,20,21,221/2''×1/2''12.7mm×12.7mm16,17,18,19,20 ... ,21,22,235/8''×5/8''16mm×16mm18,19,20 ... ,213/4''×3/4''19.1mm×19.1mm16,17,18,19,20,211''×1/2 ... welded mesh: Opening Wire gauge(BWG) In inch In mm 1/2''×1/2'' 12.7mm×12.7mm16,17,18,19 ... products, please mail me to talk the specifics.'' 2.5/8"*2.5/8" Galvanized welded wire mesh(manufacturer)