Shenzhen Guangming District Guangdong No.19 Water Pipes No.21 Gui Dao Jiao Tong Jie Jue Solutions No.23 Track Road Transportation Engineering No.29 Pipes and Fittings No.49 Nuclear Power Operations No.57 Pipes No.58 Zhi Rack Systems No.67 Hardware Pipes Parts No.69 City Gas No.69 Zhi Diao Rack No.83 Water Construction No.86 Shui Wu Gui Hua 国家高新技术企业 高新技术企业 省级专精特新中小企业 省级高新技术企业 市级高新技术企业 标准起草单位