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发明名称
SEAL RING FOR BALL VALVE
摘要
申请公布号
JPS5540354(A)
申请公布日期
1980.03.21
申请号
JP19780113570
申请日期
1978.09.18
申请人
HITACHI LTD
发明人
SHINOHARA MORIMICHI;TERAMOTO TETSUYA
分类号
F16K5/20
主分类号
F16K5/20
代理机构
代理人
主权项
地址
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