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On May 23, 2024,DIANMING warmly welcomed a delegation of 27 officials from the Cuban government, accompanied by leaders of the Shenzhen Electronic Commerce Association for a visit and inspection.Members of the Cuban delegation come from the Ministry of Science, Technology and Environment, the Ministry of Industry, the Ministry of Communications, Havana Province, as well as higher education institutions and research organizations. Mr. Wang Yunfeng, Chairman of DIANMING, delivered the welcome speech.He welcome

With the rapid development of urbanization, vehicle travel has became one of our major transportation, but the increasing number of vehicles has also lead tofrequent traffic accidents. According to the National Traffic Accident data,major traffic accidents are caused when vehicles are speeding, obviously  traditional speed limit signs alone cannot meet the needs of traffic safety. Inresponse to the long- standing problems of traditional speed limit signs suchas Chaotic, Unclear,and Unobtrusiveness. Based on DI