... Metal Sheet 1.BWG12-23 2.Mesh:1/4'' 1/2'' 1'' 1-1/2'' 2'' 4'' 3.Material:low steel ... automated machine technology, and then hot galvanized treatment, with flat surface, strong structure, strong integrity, difficult ... surface brightness, thick zinc coat, uniform mesh, tensile power, resistance corrosion advantages. Quality standard: 122 or more ... 16mm18,19,20,21,3/4" x 3/4"19.1mm x 19.1mm16,17,18,19,20,211 ...