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发明名称
BLOCKING METHOD FOR TAP HOLE
摘要
申请公布号
JPS53123307(A)
申请公布日期
1978.10.27
申请号
JP19770038313
申请日期
1977.04.04
申请人
NIPPON STEEL CORP
发明人
CHIBA KENJI;KAMISHIMA TAKEO;OOTSUKI YUUZOU
分类号
C21B7/12
主分类号
C21B7/12
代理机构
代理人
主权项
地址
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