No.144 Songjiang District Popularity Ranking Shanghai No.3 Energy Saving Frequency Converters No.6 Bian Pin Diao Su Devices No.6 UL Certification No.8 Testing Systems No.10 Electronics Transformers No.14 Frequency Converters No.15 Transformers No.16 Frequency Conversion Technology No.32 Testing Equipment No.37 Ye Jin Gong Yi No.48 Power Generation Technology No.48 Power Equipment 市级高新技术企业 高新技术企业 科技小巨人企业 市级专精特新中小企业 省级高新技术企业 科技型中小企业 市科技型中小企业 省级创新型中小企业 实用新型专利 专精特新小巨人企业 ISO9001认证 UL认证 CE认证 ISO14000认证