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发明名称
摘要
申请公布号
JPH028011(B2)
申请公布日期
1990.02.22
申请号
JP19860173806
申请日期
1986.07.25
申请人
JAPAN STEEL WORKS LTD
发明人
GOTO HIROSHI;OOTSUKA KATSUHIKO
分类号
B30B9/20;C21D8/00;C21D9/38;C22C38/00;C22C38/44
主分类号
B30B9/20
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代理人
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