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发明名称
摘要
申请公布号
JPS5838249(B2)
申请公布日期
1983.08.22
申请号
JP19800062442
申请日期
1980.05.12
申请人
DAIDO KOGYO KK
发明人
KAWAI KOJI
分类号
B21D5/01;B21D5/00;B21D7/08
主分类号
B21D5/01
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