Shenzhen Yao Shun Technology Co., Ltd | Dragonmen Group. was founded in 2007, located in Huaqiangbei, Shenzhen City, which is one of the biggest distribution centers of electronic components in Asia. We are committed to reverse technology research, software and hardware design & development, including electric scooter,PCBA clone, PCB design, IC decryption, PCBA mass production, prototype production and so on. Now, Loongson has become an industry-leading company integrating with R&D, design and manufacturing. Welcome your enquiry and order.