Welded wire or “wire-mesh” is a large regulatory category of wire fabric. Wire mesh has wide applications in the industry, agriculture, science and technology and national defense. Weld mesh is the term given to the kind of barrier fencing that is manufactured in square or rectangular mesh from steel wire, welded at each intersection. It is usually affixed to steel uprights and sometimes used in reinforced concrete, notably for slabs. Wire mesh, or screen is mainly used in: Aviation, aerospace, printing, dyeing, electronics, mining, pharmaceutical, food, food processing and chemical industry. Mesh Screen has basically four functions: Screening, filter, Printing and strengthening. In addition, woven wire mesh can be used to make quarry screen in petroleum industry, as acid washing mesh in chemical and chemical fiber industry, and electro-galvanizing industry, it is used as sifting screen for solid particles and powder, or as filter media for liquid and gas in the industries such as metallurgy, coal, petroleum, chemical, pharmacy, automobile, porcelain, glass and so on.