No.108 Songjiang District Popularity Ranking Shanghai No.4 Shu Ju Chuan Shu No.8 Communication No.9 Guang Communication Components No.9 Communication Engineering No.10 Cables No.10 Optical Fiber No.20 Aerospace Technology No.59 Production Equipment Communication Technology Optical Cables Laser Communication Tong Xin Guang Cable 市级高新技术企业 高新技术企业 市级专精特新中小企业 省级高新技术企业 省级创新型中小企业 专精特新小巨人企业