... band 2 work for 48hrs continuously 3 delivery fast 4 Low energy consumption Super-audio Quenching Machine For 600mm Gear Main ... cooling circulation system, ensure that the equipment 24 hours of continuous work. 3, small size, light weight, easy to move, no ... maintain and improve the over voltage, over current, overheating, lack of, water and other self-protection. 5, use large scale integrated circuit ...