Beijing Changping District No.12 Well Logging Technology No.13 Oil Field Technology Services No.16 Petroleum Technology No.26 Oil and Gas Field No.50 Zi Ran Zi Yuan No.54 Liang Instruments No.74 Oil and Gas Precision Instruments Ke Xue Instruments Precision Machinery Petroleum Metrology Management 中关村高新技术企业 瞪羚企业 市级专精特新中小企业 市级创新型中小企业 省级高新技术企业 市级高新技术企业 高新技术企业 ISO9001认证