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发明名称
摘要
申请公布号
JPS5511256(U)
申请公布日期
1980.01.24
申请号
JP19780092597U
申请日期
1978.07.04
申请人
发明人
分类号
B22D17/20;B22D17/00;B22D31/00;(IPC1-7):B22D31/00
主分类号
B22D17/20
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