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With the development of mining industry, the classification of pig iron is already very broad in our country, which can satisfy the demand of mechanical industry. In general, the iron used to produce large rolls of galvanized wire can be divided into two classes. A metal exercised directly from the iron ore through the iron making stroke, the composition of the ore is iron oxide, silica and other miscellaneous stones. When this ore is specially refined into metal iron, carbon, silicon, manganese, and other elements are mixed into it. The material produced in this way is called ordinary pig iron, which is also the material for the first grade.

(4) granary storage, circle corn net.

The principle of wire mesh mesh size, wire, square meters of steel content, galvanized amount, etc., to consider the corrosion resistance of wire mesh and the safety of the system! Wire mesh galvanized than wire diameter more fierce, galvanized quantity is very important, must be hot plating, welding after plating than plating after welding, as for wire diameter, induction and consideration of site construction and meet the needs of Ann.