 GUANGZHOU, China, Oct. 06, 2021 GLOBE NEWSWIRE -- EHang Holdings Limited Nasdaq: EH EHang or the Company, the worlds leading autonomous aerial vehicle AAV technology platform company, announced that it collaborates with the Spanish National Police to explore potential use cases for AAVs in emergency and security missions. At yesterdays Press Day of Expodronica at World Air Traffic Management Congress, EHang made the first public exhibition of the EHang 216 passenger-grade AAV in Spain at the Cuatro Vientos Aerodrome in Madrid. 