鋼帶經過預處理后，進行等溫分級淬火、在線回火。其性能指標達到使用標準。
After pretreatment, the steel strip is subject to isothermal step quenching and on-line tempering, and its performance index meets the service standard.
鋼帶經過預處理后，進行等溫分級淬火、在線回火。其性能指標達到使用標準。
After pretreatment, the steel strip is subject to isothermal step quenching and on-line tempering, and its performance index meets the service standard.
