No.29 Fangshan District Popularity Ranking Beijing No.2 Water Saving No.2 Wei Fen Heads No.2 Wu Lian Wang Jie Jue Solutions No.3 Industrial Supplies No.3 An Quan Guang Shan No.3 An Quan Jian Testing Management No.3 Shui Wen Shui Zi Yuan No.3 Shui Wen No.3 Early Warning Systems No.3 An Quan Jian Testing No.4 Guang Shan No.4 Zhi Neng Jian Testing 高新技术企业 瞪羚企业 专精特新小巨人企业 国家高新技术企业 专精特新企业 国家技术发明奖 ISO9001认证 工业产品生产许可证