Hangzhou Yuhang District Zhejiang Fei Water Treatment Chemicals Engineering Hua Gong / Chemistry Low Carbon Environmental Protection Ecological Construction Water Treatment Engineering Shui Chu Li Wei Hu Environmental Treatment Filtration Film Water Investment Environmental Protection Products Environmental Treatment 省级高新技术企业 省软件企业 科技型中小企业 省科技型中小企业 省级创新型中小企业 市级创新型中小企业