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发明名称
摘要
申请公布号
JPH0464557(U)
申请公布日期
1992.06.03
申请号
JP19900108546U
申请日期
1990.10.16
申请人
发明人
分类号
C21C5/46;C21C5/52;F27D3/14;(IPC1-7):C21C5/52
主分类号
C21C5/46
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