No.700 Beijing Popularity Ranking No.74 Yizhuang Development Zone No.2 3D Printing No.2 Industrial 3D Printing No.2 He Gold No.3 He Gold Materials No.3 3D Printing Materials No.3 Zeng Materials Manufacturing No.3 Wu Chemical Technology No.3 Nonferrous Metals No.3 Jin Shu He Gold No.8 Aviation Industrial No.9 Petrochemicals No.10 New Materials 科技型中小企业 民营科技企业 中关村高新技术企业 专精特新企业 理事单位 国家高新技术企业 ISO13485认证