Lance comprises a pair of concentric tubes for refining the steel melt. The inner tube has a top terminal conical nozzle extended by a nozzle having a threshold.
申请公布号
RO100169(A2)
申请公布日期
1990.06.27
申请号
RO19870130139
申请日期
1987.10.19
申请人
INSTITUTUL DE INGINERIE TEHNOLOGICA SI PROIECTARE PENTRU INDUSTRIA METALURGICA, BUCURESTI, RO
