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发明名称
摘要
申请公布号
JPS5630441(Y2)
申请公布日期
1981.07.20
申请号
JP19770105789U
申请日期
1977.08.09
申请人
发明人
分类号
B22D17/26;B22D17/10;B22D17/20;F16P1/00;(IPC1-7):B22D17/20
主分类号
B22D17/26
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