No.127 Songjiang District Popularity Ranking Shanghai No.4 Smart Electrical No.5 Smart Power Transmission and Distribution No.5 UL Certification No.5 Zhi Neng Pei Dian No.8 Electrical Systems No.9 Smart Grid No.12 Di Ya Appliances No.28 Power Engineering No.36 Smart Engineering Factory No.37 Industrial 4.0 No.48 Power Distribution No.53 Appliances 制造业单项冠军 智能制造示范工厂 国家知识产权示范企业 省级服务型制造示范企业 专利示范企业 市级专精特新中小企业 UL认证