Recently, Liu Yunhua, the investor of gangzheng company, has won the national invention patent for the “preparation method of strong corrosion-resistant hot-dipped magnesium-aluminum-zinc coated steel coil”.
The magnesium-aluminum-zinc coated steel products have strong corrosion resistance. After several times of testing by the company's experimental center, no rust spots were found on the 275g coated magnesium-aluminum-zinc plate for 7500 hours, The National Building Materials Testing Center detected that there was no rust spot in 100g SST salt spray for 4000 hours, Therefore, its corrosion resistance is more than 10 times that of ordinary galvanized steel coil.This product is widely used in construction, home appliances, transportation, decoration, refrigeration, purification and other industries, especially in the acid, alkali, medicine, humidity and other more complex environment to reflect its anti-corrosion effect.
