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Thermal spraying metal coating anti-corrosion technology: This technology can be used to protect various types of steel in corrosive environments such as industrial atmospheres, marine atmospheres, areas subject to splash from waves, and areas with significant temperature fluctuations. Such as high-voltage utility poles, transmission towers, ships, oil platforms, dock pilings, and submarine pipelines. According to **incomplete statistics** from industrially developed countries, economic losses caused by corrosion account for 2%-4% of the total gross national product each year. If anti-corrosion measures are carried out properly, 40% of this loss can be avoided. Therefore, this technology has broad market prospects and significant economic benefits. This technology utilizes thermal spraying to apply zinc, aluminum, and their alloy wires to the surface of steel components, forming a metal coating that provides long-term protection for steel structures in harsh corrosive environments such as industrial areas and marine settings. In corrosive media, zinc or aluminum coatings provide feasible cathodic protection for steel by acting as an anode. It also isolates the corrosive medium from the substrate to provide mechanical protection for steel. The zinc spray coating bonds well to the steel substrate, is easy to apply, has a low content of oxides and pores, and provides excellent cathodic protection for the steel. There are relatively many oxides and pores in the aluminum-sprayed coating. Its corrosion and impact resistance performance is superior to that of the zinc-sprayed coating; however, its cathodic protection effect is inferior to that of the zinc-sprayed coating. This technology utilizes zinc- sprayed aluminum alloys and zinc-aluminum alloy composite coatings, which combine the advantages of zinc spraying and aluminum spraying; they offer excellent cathodic protection properties as well as a long service life resistant to corrosion.