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发明名称
SQUARE STEEL TUBE AND ITS MANUFACTURE
摘要
申请公布号
JPH09192732(A)
申请公布日期
1997.07.29
申请号
JP19960320633
申请日期
1996.12.02
申请人
NAKAJIMA KOKAN KK
发明人
NAKAJIMA SHIN
分类号
E04C3/32;B21C37/15;B21D5/12;H05B6/10;(IPC1-7):B21C37/15
主分类号
E04C3/32
代理机构
代理人
主权项
地址
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