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ROTARY DISC VALVE FOR THE OUTLET OF GASES FROM COVERED ELECTRIC METALLURGICAL FURNACES
申请公布号：
YU138372(A)
申请号：
YU19720001383
申请日期：
1972.05.24
申请公布日期：
1979.04.30
申请人：
ELKEM AS
分类号：
F16K3/08;F16K5/00;F27B3/08;(IPC1-7):F27B3/08
主分类号：
F16K3/08
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