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发明名称
摘要
申请公布号
JPS6222252(Y2)
申请公布日期
1987.06.06
申请号
JP19830044307U
申请日期
1983.03.29
申请人
发明人
分类号
B21C23/00;B05C1/02;B21C33/00;B21C35/00;(IPC1-7):B21C33/00
主分类号
B21C23/00
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