Purpose:
　★Debugging and aging of the DC motor; storage cell charge and the load like this.　
　★Used for electrolysis salt field and electrolysis magnesium field;　
　★DC power supply heated by the black lead;
　★Galvanization and process the surface of the metal/nonmetal products, anode oxidation. 　
　★Electrophoresis lacquer and where need DC high power supply