➁
Mesh: Number of meshes in 1 inch (25.4 mm) straight line
➂
Wire diameter: The thickness of the line is generally expressed up to 1/1000 units, and the international standard S.W.G or B.W.G is sometimes used
➃
Opening : Distance of two adjacent parallel lines, calculated as [25.4mm (1 inch) ÷ Mesh] - Wire diameter
➄
Open area : The ratio of the total network space area, calculated as Open Area(%)=

x 100