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发明名称
摘要
申请公布号
JPH0327689(Y2)
申请公布日期
1991.06.14
申请号
JP19860066552U
申请日期
1986.05.01
申请人
发明人
分类号
C21D1/00;B21B45/02;C21D9/52;(IPC1-7):B21B45/02
主分类号
C21D1/00
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