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发明名称
摘要
申请公布号
JPS566552(U)
申请公布日期
1981.01.21
申请号
JP19790087508U
申请日期
1979.06.25
申请人
发明人
分类号
B22D11/10;B22D41/00;B22D41/50;(IPC1-7):B22D11/10
主分类号
B22D11/10
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代理人
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