No.439 Nanshan District Popularity Ranking Shenzhen Guangdong No.1 Machines Vehicles No.3 AC-DC No.9 Power Supplies Modules No.9 DC DC Power Supplies No.14 Communication Systems No.14 Kai Guan Dian Yuan Shi Pei Devices No.14 Shipbuilding No.15 Lei Da Technology No.15 DCDC No.17 Switching Power Supplies No.18 Wei Bo Lei Da No.19 Lei Da 国家高新技术企业 高新技术企业 省级工程技术研究中心 科技型中小企业 市科技型中小企业 省级高新技术企业 市级高新技术企业 专精特新小巨人企业