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发明名称
NON-FLOATING SEAT STRUCTURE FOR EXPANDING GATE VALVES
摘要
申请公布号
GB1528594(A)
申请公布日期
1978.10.11
申请号
GB19750040266
申请日期
1975.10.02
申请人
ACF IND INC
发明人
分类号
F16K3/18;(IPC1-7):F16K3/30
主分类号
F16K3/18
代理机构
代理人
主权项
地址
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