... and temperature keeping materials in the form of mesh container, stone cage, isolation wall, boiler cover or poultry fence in construction ... 0.5M-2.0M) Mesh Wire Gauge (BWG) Inch mm 3/8" 10mm 27,26,25,24,23,22,21 1/2 ... ,24,23,22,21,20, 5/8" 16mm 27,26,25,24,23,22 3/4" 20mm 25,24,23,22 ... 50mm 22,21,20,19,18,17,16,15,14 3" 75mm 21,20,19,18,17,16,15,14 4 ... ' 1 1-1/4" 32mm 22,21,20,18 3' 2 1-1/2" 40mm 20,19,18 4 ...