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发明名称
摘要
申请公布号
JPS5968646(U)
申请公布日期
1984.05.09
申请号
JP19820160311U
申请日期
1982.10.25
申请人
发明人
分类号
B21B31/20;B22D11/128;(IPC1-7):B22D11/128
主分类号
B21B31/20
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