Type of Patent:发明
State of Patent:已失效
Authorization number:201210279062.1
Service Invention or Not:no
Application Date:2012-08-08
Authorization Date:2015-06-10
Pre One:一种电弧炉炼钢用无氟造渣熔剂
Next One:一种连铸中间包工作层涂料
The Last Update Time:..