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发明名称
摘要
申请公布号
JPH0318932(U)
申请公布日期
1991.02.25
申请号
JP19890080015U
申请日期
1989.07.06
申请人
发明人
分类号
B22D25/02;B21F31/00;B21L9/00;B21L11/08;B22C9/30;E04C5/02;(IPC1-7):B21F31/00
主分类号
B22D25/02
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代理人
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