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发明名称
PRODUCTION OF COLD DRAWN STEEL PIPE FROM ELECTRICALLY SEAMED STEEL PIPE
摘要
申请公布号
JPS54118372(A)
申请公布日期
1979.09.13
申请号
JP19780026873
申请日期
1978.03.07
申请人
SUMITOMO METAL IND
发明人
TAWARA MINORU;TAKIGAWA NANAO
分类号
B21C1/22;B21C37/30
主分类号
B21C1/22
代理机构
代理人
主权项
地址
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