No.48 Tongzhou District Popularity Ranking Beijing No.3 Tu Zhuang Gong Yi No.3 Zi Dong Hua Xi Tong Ji Cheng Shang No.4 Machines Vehicles No.4 Smart Warehousing No.4 Zi Dong Hua Jie Jue Solutions No.7 MES No.8 Surface Treatment No.9 Processing Equipment No.10 Smart Equipment No.22 Shipbuilding No.29 Machinery No.29 Zhuan Yong Equipment 理事单位 常务理事单位 专精特新小巨人企业 高新技术企业 科技型中小企业 中关村高新技术企业 ISO9001认证