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发明名称
摘要
申请公布号
JPH028573(Y2)
申请公布日期
1990.03.01
申请号
JP19830078449U
申请日期
1983.05.24
申请人
发明人
分类号
B22D17/22;B21D37/14;B29B13/00;B29C33/00;B29C33/20;B29C33/30;(IPC1-7):B21D37/14
主分类号
B22D17/22
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