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发明名称
摘要
申请公布号
JPS5226493(Y2)
申请公布日期
1977.06.16
申请号
JP19740031009U
申请日期
1974.03.18
申请人
发明人
分类号
B22D11/128;B22D11/12;F16C13/00;(IPC1-7):B22D11/12
主分类号
B22D11/128
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代理人
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