METHOD FOR MAINTAINING METALLURGICAL VESSEL AND OPENING HOLE THEREOF AND DEVICE FOR USING TO THESE,申请号JP19890265819-传众专利搜索

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发明名称	METHOD FOR MAINTAINING METALLURGICAL VESSEL AND OPENING HOLE THEREOF AND DEVICE FOR USING TO THESE
摘要
申请公布号	JPH03126807(A)	申请公布日期	1991.05.30
申请号	JP19890265819	申请日期	1989.10.12
申请人	SUMITOMO METAL IND LTD	发明人	MORI TOSHIHIRO;YAMADA TSUNEO;KAJIWARA KOJI;IKEMIYA HIROYUKI;ISHIDA HIROAKI
分类号	C21C5/42	主分类号	C21C5/42
代理机构		代理人
主权项
地址

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