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经营范围
发明名称
PIPE JOINT
摘要
申请公布号
IE802255(L)
申请公布日期
1981.04.30
申请号
IE19800002255
申请日期
1980.10.30
申请人
VALLOUREC
发明人
分类号
F16L15/04;E21B17/042;F16L15/06;(IPC1-7):F16L15/00
主分类号
F16L15/04
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代理人
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