Shenzhen Longgang District Guangdong Dian Li Shi Engineering Decoration Decoration Smart Grid Fire Protection Engineering Shi Nei Zhuang Xiu Gong Cheng Cheng Bag Power Systems Industrial Safety Construction Appliances Electrical Engineering Electrical Safety Power Engineering Management 省级高新技术企业 市级高新技术企业 科技型中小企业 市科技型中小企业 高新技术企业 市级创新型中小企业 承装修试 电力工程施工总承包