wire annealing furnace save energy,safetly,fully auto, can be on-line with drawing machine I , Main ... power 380 / V/ 50Hz, 3-phase8,connecting mode Y, 9,temperature control accuracy ≤±2°C10, the effective size of internal furnace φ1600 ... speed regulated) as well as inner-chamber temperature measurement, control, paper-free recording and temperature limit are all regulated automatically as per the ...