... , low maintenance costs;100% duty cycle,in maximum power can get the 24-hour operation.With a constant current / constant power ... power and time, will help provide high quality of the repetitive heating and simplify workers to operate;Heat treatmentautomoble, ... for the melting of steel, stainless steel, copper, brass, silver, gold, and aluminium materials, etc. 2. Melting capacity can be from 3KG ...