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发明名称
摘要
申请公布号
JPH0623919(Y2)
申请公布日期
1994.06.22
申请号
JP19900111921U
申请日期
1990.10.25
申请人
发明人
分类号
C21D1/00;F27D5/00;(IPC1-7):F27D5/00
主分类号
C21D1/00
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