I. Introduction: This product is made of high quality imported surfactants, complexing agents and fog inhibitor compound formed, and compared to the traditional three-acid products, the product overcome similar products are not universal, easy to produce tobacco, stable poor defect. Capable of efficient and effective removal of various oxides, rust and oil copper surface of the workpiece clean as new. Therefore, this product is an alternative to the traditional three-acid products better choice. Second, the product features: 1, a light speed, stable solution: 20 seconds fast light, pharmaceutical stability does not decompose 2, environmentally friendly: no "tobacco", improve the working environment 3, versatility: can basically meet the market 95% Pickling copper polishing using 4, low cost: The cost of the process is only three acid process 40% -60% Third, use: Place the cleaned copper pieces to be treated to this polishing liquid, the temperature best advice 40 to 45 degrees for 20 seconds to 2 minutes after the removal, and then rinse with water. Polishing time by the extent of surface oxidation of copper to decide. Fourth, the process: degreasing --- ---- MS0310 over the water over the water polishing --- ---- --- MS0423 passivation over the water --- drying V. Note: 1, in acid When washing, dithering artifacts should be appropriate in order to avoid overlap between the workpiece, but not before stirring to form a uniform foam surface is not otherwise easily lead to uneven polishing 2, the workpiece should be cleaned with water as soon as possible after pickling, in case of brightness undesirable pickling may be repeated until qualified 3, pickling if the workpiece has a complicated shape like a blind hole, it is recommended to use a concentration of 0.5-1% of sodium hydroxide solution and treated, before subsequent blunt treatment. In order to avoid the pickling liquid into the passivating agent caused the failure.