I. Introduction: The United States Beishi bright brand copper cleaner and brightener MS0217 by inhibitor compound made primarily for copper, aluminum and other materials without damage to the workpiece size of rust, copper, aluminum has graced role. This product can also be called "rub copper water." Second, the product advantages: 1, degreasing, descaling, brightening triple 2, does not destroy the workpiece size 3, will not activate the surface, does not cause a short three copper color, use: dope use, soak at room temperature 2 to 10 minutes (depending on the degree of pollution decisions), remove the water with tap water clean work surface can be achieved, rust and credit to the role.