Routine maintenance Class ASubgrade and pavement, Class AMaintenance Engineering General Contracting Class BSecurity engineering levelProfessional contracting of highway safety facilities for highway traffic engineering Class ISubgrade and pavement maintenance Class ASubgrade and pavement maintenance Class AMaintenance of traffic safety facilities is not graded
Maintenance Engineering General Contracting Class BSubgrade and pavement, Class ARoutine maintenance Class ASubgrade and pavement maintenance Class ASubgrade and pavement maintenance Class AMaintenance of traffic safety facilities is not gradedMaintenance of traffic safety facilities is not gradedEnvironmental protection engineering professional contracting secondary
Routine maintenance Class ATransportation enterprise safety production standardization level 1Bridge Engineering Professional Contracting Level IProfessional contracting of highway subgrade worksProfessional contracting of highway safety facilities for highway traffic engineering Class IMunicipal public works construction general contracting level IProfessional contracting of highway pavement works Class IGrade I highway engineering construction general contracting
Chongqing Yiao Construction Special Professional Engineering Co., Ltd.
Total 14 qualifications
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重庆市渝北区
Environmental protection engineering professional contracting secondaryProfessional contracting of highway subgrade worksClass II general contracting of construction worksMaintenance Engineering General Contracting Class BMunicipal Public Works Construction General Contracting Level IIRoutine maintenance Class AProfessional contracting of highway pavement works Class IISteel structure engineering professional contracting secondary
Subgrade and pavement Class BRoutine maintenance Class AMunicipal Public Works Construction General Contracting Level IIClass II general contracting of construction worksGrade II general contracting of highway engineering constructionMaintenance of traffic safety facilities is not gradedMaintenance of traffic safety facilities is not gradedBridge Maintenance Class B
Chongqing Qijiang Quanxing Construction Engineering Co., Ltd.
Total 9 qualifications********
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重庆市綦江区
Subgrade and pavement, Class ARoutine maintenance Class AConstruction labor is not gradedClass II general contracting of construction worksEnvironmental protection engineering professional contracting secondaryMunicipal Public Works Construction General Contracting Level IISteel structure engineering professional contracting secondaryFormwork scaffolding professional contract regardless of grade
Henan Tongji Road and Bridge Engineering Technology Co., Ltd.
Total 8 qualifications********
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河南省郑州市金水区
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