The
length of annealing furnace is 26m，36m，46m.the longest is
80m.The width of the hearth is 7.2m. There are temperature
increasing temperature preservation, quick cooling and slow
cooling.
The
proper microstructure of ferrite basic is achieved after annealing
treatment, the mechanical properties are accord with ISO2531:1998(E).
Beishatan No.1.P.box 31
Deshengmenwai Dajie 100083 Beijing P.R.of China
