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发明名称
GROOVED PIPE AND ITS MANUFACTURE
摘要
申请公布号
JPS58187681(A)
申请公布日期
1983.11.01
申请号
JP19820070755
申请日期
1982.04.27
申请人
TOKYO SHIBAURA DENKI KK
发明人
OKAYAMA YUKIHIRO
分类号
F16L9/06;B21C37/15;B21H8/00;F28F1/26
主分类号
F16L9/06
代理机构
代理人
主权项
地址
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