the lanzhou bluestar daily chemical co got an invention patent for its anti-rust and protection technology for metal recently. the main feature of the corrosion inhibitor is its efficient anti-corrosive method and efficiency in stopping corrosion on carbon steel, as much as 99 percent. it also meets dl/t523-2007 standards and the amount of this inhibitor is minor and it can be used below 70 c. it has no corrosive effect on steel at all and is cheap and can be widely applied in industrial cleaning operations.