... resistance, serves well as strengthening, protection and temperature keeping materials in the form of mesh container, stone cage, isolation wall, ... boiler cover or poultry fence in construction, chemical, breeding, garden and food processing industries Galvanized ... 21,20,18 2' 1 1-1/4" 32mm 22,21,20,18 3' 2 1-1/2" 40mm 20,19,18 4' 3 2" 50mm 20,19,18 5' 4 3" 75mm 20, ...