No.223 Panyu District Popularity Ranking Guangzhou Guangdong No.3 Environmental Protection Facilities No.4 Water Purification Technology No.4 Shui Wu Ran Zhi Management No.4 Da Qi Zhi Management No.5 Wu Ran Control No.5 Huan Jing Ke Xue No.5 Renewable Resources No.6 Wu Ran Zhi Management No.6 Huan Jing Wu Ran Zhi Management No.6 Shui Zhi Management No.7 Environmental Engineering Technology No.8 Environmental Monitoring 科技小巨人企业 研究生培养基地 科技型中小企业 省科技型中小企业 高新技术企业 省级高新技术企业 省级创新型中小企业 质量信得过产品 发明专利 国家发明专利 专精特新小巨人企业 ISO9001认证 ISO14001认证 市政公用工程施工总承包 环保工程专业承包