<p>A lance and gas injection system wherein the lance comprises a metallic supply tube and a two piece small diameter nozzle comprising a metallic backpiece and a ceramic frontpiece. <IMAGE></p>
申请公布号
EP0571984(B1)
申请公布日期
1997.03.05
申请号
EP19930108516
申请日期
1993.05.26
申请人
PRAXAIR TECHNOLOGY, INC.
发明人
FRANCIS, ARTHUR WELLINGTON, JR.;KOBAYASHI, HISASHI;TUSON, GEOFFREY BRUCE
