... annealing furnace save energy,safetly,fully auto, can be on-line with drawing machine I , Main technical parameters1,power 180kw 2,Heating elements ... the cold side of the furnace, strengthening the high temperature resistance strength of the fiber Heating elements are made of high ... at the side of the furnace, and fixed with high alumina ceramic nail, simple and safe2, furnace bottom: cast by high- ...