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摘要
申请公布号
JPS5938041(B2)
申请公布日期
1984.09.13
申请号
JP19770065522
申请日期
1977.06.02
申请人
KAWASAKI STEEL CO
发明人
KOJIMA SHINJI;SEKINE TOSHIHIRO
分类号
B21B1/02;B21B1/46;B22D11/12
主分类号
B21B1/02
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