Our steel rust remover contains citric acid， sodium carbonate and disodium EDTA. It can quickly react with the rust on the metal surface to effectively remove the rust layer and restore the smoothness of the metal surface. The metal surface forms a strong protective film， effectively isolating air and moisture， preventing the metal from rusting again， and extending the service life. Its use is simple: clean and dry the areas that need to be removed， spray the rusty areas directly with a spray， and let the spray soak into the rust layer. Wipe the surface clean and reuse until all rust is removed. It also has stability and durability， and can maintain excellent performance even in harsh environments， reducing coating peeling or discoloration caused by environmental factors.