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发明名称
METHOD AND DEVICE FOR MANUFACTURING THICK METAL PIPE
摘要
申请公布号
JPS6444211(A)
申请公布日期
1989.02.16
申请号
JP19870201638
申请日期
1987.08.12
申请人
NIPPON STEEL CORP
发明人
KIMIYA YASUO;ICHIHARA HIROHISA;HANEDA KENJI
分类号
B21C37/00;B21C3/14
主分类号
B21C37/00
代理机构
代理人
主权项
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