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发明名称
摘要
申请公布号
JPS5821617(Y2)
申请公布日期
1983.05.09
申请号
JP19810012089U
申请日期
1981.01.29
申请人
发明人
分类号
B22D31/00;B23D45/00;B23D47/04;B23D47/08;B23D47/10;(IPC1-7):B23D47/04
主分类号
B22D31/00
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