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发明名称
MANUFACTURE OF THIN SEAMLESS STEEL TUBE OF HIGH OUT-OF-ROUNDNESSS
摘要
申请公布号
JPH0484610(A)
申请公布日期
1992.03.17
申请号
JP19900197612
申请日期
1990.07.27
申请人
NIPPON STEEL CORP
发明人
MUNEMASA IKUYA;KIKUCHI YOSHIYA
分类号
B21B17/14;B21B19/10
主分类号
B21B17/14
代理机构
代理人
主权项
地址
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