... construction in the form of reinforcement brick mesh, welded bar gratings or wire mesh sandwich construction. A wire mesh sandwich construction which comprises an array ... /8"10.6mm x 10.6mm19,20,21,221/2" x 1/2"12.7mm x 12.7mm16,17,18,19,20 ... x 25.4mm15,16,17,18,19,201" x 1/2"25.4mm x 12.7mm16,17,18,19,20,211 ... -1/2" x 1-1/2"38mm x 38mm14,15,16,17,18,191 ...