FARMINGDALE, N.Y.--(BUSINESS WIRE)--Telephonics Corporation (Telephonics), a wholly owned subsidiary of Griffon Corporation (NYSE:GFF), announced today that its Sky Search-2000®M, an Air Traffic Control (ATC) system, has completed Monopulse Secondary Surveillance Radar (MSSR) certification testing in China and has received the official certification from the Civil Aviation Authority of China (CAAC). The rigorous, comprehensive and lengthy assessment analyzed Telephonics’ MSSR performance and ai
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