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发明名称
SEAT RINGS FOR BALL VALVES
摘要
申请公布号
GB8710592(D0)
申请公布日期
1987.06.10
申请号
GB19870010592
申请日期
1987.05.05
申请人
WORCESTER CONTROLS (UK) LTD
发明人
分类号
F16K5/06;F16K39/06
主分类号
F16K5/06
代理机构
代理人
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