AAA立信示范单位

Period: 2019-01-15 / 2020-01-15

Certificate Encoding: -

Certification bodies: 全国企业征信系统

Certificate of Quality Management

Period: 2013-06-18 / 2016-06-17

Certificate Encoding: -

Certification bodies: 北京外建质量中心

ISO9001质量管理证书

Period: 2013-06-18 / 2016-06-18

Certificate Encoding: -

Certification bodies: 北京外建质量认证中心