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发明名称
摘要
申请公布号
JPS55160231(U)
申请公布日期
1980.11.18
申请号
JP19790056543U
申请日期
1979.04.28
申请人
发明人
分类号
B30B15/28;B21D37/04;(IPC1-7):B21D37/04
主分类号
B30B15/28
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