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发明名称
摘要
申请公布号
JPH02118635(U)
申请公布日期
1990.09.25
申请号
JP19890027407U
申请日期
1989.03.10
申请人
发明人
分类号
B22D17/22;B22C9/06;B29C39/38;B29C45/73;(IPC1-7):B22C9/06
主分类号
B22D17/22
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