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发明名称
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申请公布号
JPS56122560(U)
申请公布日期
1981.09.18
申请号
JP19800020502U
申请日期
1980.02.20
申请人
发明人
分类号
B22D2/00;B22D45/00;(IPC1-7):B22D45/00
主分类号
B22D2/00
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