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发明名称
SEAL RING FOR BALL VALVES
摘要
申请公布号
GB2001737(A)
申请公布日期
1979.02.07
申请号
GB19780029483
申请日期
1978.07.11
申请人
HALPINE J
发明人
分类号
F16K5/06;(IPC1-7):F16K5/06
主分类号
F16K5/06
代理机构
代理人
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地址
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