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摘要
申请公布号
JPH0392753(U)
申请公布日期
1991.09.20
申请号
JP19890153114U
申请日期
1989.12.28
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发明人
分类号
C21C7/072;(IPC1-7):C21C7/072
主分类号
C21C7/072
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