No.186 Panyu District Popularity Ranking Guangzhou Guangdong No.1 Zhong Shui Hui Yong No.3 Water Purification Technology No.3 Shui Wu Ran Zhi Management No.4 Water Treatment Systems No.4 Wu Ran Control No.4 Qing Jie Technology No.5 Fei Water Treatment No.5 Shui Huan Jing Zhi Management No.5 Wu Ran Zhi Management No.5 Huan Jing Wu Ran Zhi Management No.6 Environmental Engineering Technology No.7 Huan Bao Gong Cheng Zhuan Ye Cheng Bag 高新技术企业 国家专利 博士后工作站 专精特新小巨人企业 省级专精特新中小企业 科技型中小企业 ISO9001认证 环保工程专业承包