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发明名称
摘要
申请公布号
JPS6445295(U)
申请公布日期
1989.03.17
申请号
JP19870139717U
申请日期
1987.09.13
申请人
发明人
分类号
C21D1/00;F27B9/24;F27B9/30;F27D3/02;(IPC1-7):F27B9/24
主分类号
C21D1/00
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