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发明名称
VALVE SEAT INSERTS OF SINTERED METAL
摘要
申请公布号
GB1580688(A)
申请公布日期
1980.12.03
申请号
GB19790034044
申请日期
1976.01.02
申请人
BRICO ENG LTD
发明人
分类号
C22C33/02;F16K1/42;F16K25/00;(IPC1-7):C22C38/16
主分类号
C22C33/02
代理机构
代理人
主权项
地址
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