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发明名称
摘要
申请公布号
JPH0274353(U)
申请公布日期
1990.06.06
申请号
JP19880153040U
申请日期
1988.11.26
申请人
发明人
分类号
B22F3/10;C21D1/00;C22F1/00;C22F1/10;(IPC1-7):C21D1/00
主分类号
B22F3/10
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代理人
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