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发明名称
Method for the production of a valve casing for a gate valve
摘要
申请公布号
EP0853992(A3)
申请公布日期
2000.10.04
申请号
EP19970120316
申请日期
1997.11.20
申请人
SEMPELL AG
发明人
WEYAND, MANFRED
分类号
B21C23/20;B21K1/24;F16K27/04;(IPC1-7):B21K1/24;F16K3/316
主分类号
B21C23/20
代理机构
代理人
主权项
地址
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