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  • Occupational Health and Safety Management Certification class=
    Occupational Health and Safety Management Certification
  • Quality Management System Certification class=
    Quality Management System Certification
  • 2015.4.1Three System Certification - Quality Management System Certification class=
    2015.4.1Three System Certification - Quality Management System Certification
  • 2015.4.1Three System Certification - Environmental Management System Certification class=
    2015.4.1Three System Certification - Environmental Management System Certification
  • 2015.4.1Three System Certification - Occupational Safety Management System Certification class=
    2015.4.1Three System Certification - Occupational Safety Management System Certification
  • 2015.4.1Three system certificates3 class=
    2015.4.1Three system certificates3
  • 2015.4.1Three system certificates2 class=
    2015.4.1Three system certificates2
  • 2015.4.1Three system certificates class=
    2015.4.1Three system certificates
  • Chinese construction machinery manufacturer50 class=
    Chinese construction machinery manufacturer50
  • Yantai May Day Labor Award class=
    Yantai May Day Labor Award
  • Shandong Province Industrial Tourism Demonstration Site class=
    Shandong Province Industrial Tourism Demonstration Site
  • National User Satisfaction Service Enterprise class=
    National User Satisfaction Service Enterprise
  • National User Satisfaction Products class=
    National User Satisfaction Products
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