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发明名称
PRODUCTION OF SQUARE STEEL TUBE
摘要
申请公布号
JPH10113717(A)
申请公布日期
1998.05.06
申请号
JP19960269001
申请日期
1996.10.11
申请人
NAKAJIMA KOKAN KK
发明人
NAKAJIMA NORIO
分类号
B21C37/15;B21D5/01;B21D17/00;(IPC1-7):B21C37/15
主分类号
B21C37/15
代理机构
代理人
主权项
地址
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