2, in the form of: forced hot air circulation 3, installed furnace capacity: 5 ~ 50t 4, heating: electric heating, fuel, gas 5, furnace temperature difference: ≤ ± 5 ℃ 6, thermal insulation at the end of the metal: ≤ ± 3 ℃ 7, temperature-controlled manner: PID temperature control, display, record and report to the police
