WING TYPE ENERGY-SAVING DOUBLE-SUCTION CENTRIFUGAL FAN
WING TYPE ENERGY-SAVING DOUBLE-SUCTION CENTRIFUGAL FAN
- CN 2,031,852 U
- Filed: 01/26/1988
- Issued: 02/01/1989
- Est. Priority Date: 01/26/1988
- Status: Active Grant
- EN CH
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