• 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