No.220 Songjiang District Popularity Ranking Shanghai No.3 Temperature Control No.4 Energy Saving and Environmental Protection Equipment No.5 Fans No.5 Electric Fans No.6 Leng Que Fans No.9 Wu Liu Cheng Notebooks Control No.13 Environmental Equipment No.13 Industrial Supplies No.13 Ji Chuang Ding Jian No.20 Industrial Products No.21 Environment Technology No.31 Environmental Technology 专精特新企业 高新技术企业 发明专利 实用新型专利 省级高新技术企业 省级创新型中小企业 市级高新技术企业