... in the tank to avoid the contact of cathode and anode, and it also no need air mixing pump, lessen ... cost, Reliable operation, environmental adaptability, and easy maintenance. 3. Aluminum oxide chiller for surface treatment like Hard Oxidation chiller, Anodic ... Oxidation Chiller, Aluminum Oxide Chiller, Zinc-Plating Chiller, Tin-Plating Chiller and ...