Functions and Uses：
1. DU-34 contains complex acid and it can enhance the acid pickling and remove the metal oxides and scale.
2. DU-34 can effectively remove both the organic and inorganic dirt and to prevent further contamination.
3. Contains strong complexing agent and can improve the Fe2 + resistance.
4. Less consuming quantity, moderate foam generation, eliminating the acid mist.
5. Containing corrosion inhibitor, it can prevent over-corrosion and re-oxidation of the workpiece.
Sulfuric acid 5-10‰
Temperature Room temperature
Current Density 2.0~4.0A/dm2