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经营范围
发明名称
摘要
申请公布号
JPS6367525(B2)
申请公布日期
1988.12.26
申请号
JP19830104289
申请日期
1983.06.13
申请人
NIPPON KOKAN KK
发明人
TAIRA TADAAKI;TAKEHARA JUNICHIRO;UME KAZUYOSHI
分类号
B21D9/18;B21C37/28;B21D7/025;B21D7/16;C21D8/10;C22C38/00;C22C38/58
主分类号
B21D9/18
代理机构
代理人
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