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A Utility Model Patent certificate for a steam fire extinguishing Device for sludge drying
A Utility model Patent certificate for a Quick clamping Device of ES cotton windscreen felt
A utility model patent certificate for an ES cotton dust-proof wafer type filter screen
A utility model patent certificate for a lightweight rotor for sludge drying
A utility model patent certificate for a suspended fan used in a dryer
Notice of Grant of Utility Model Patent Right
ISO9001 certificate
