Municipal public works construction general contracting level IGrade II general contracting of highway engineering constructionSpecialized contracting for foundation works Grade IITunnel engineering professional contracting secondaryAirport Road Engineering Professional Contracting Class ICivil Aviation Air Traffic Control Engineering and Airport Weak Current System Engineering Professional Contracting Class IIAirport Visual Aidage Engineering Professional Contracting Class IIConstruction Safety Production Permit
Electrical and mechanical engineering construction general contracting IIGrade II General Contracting for Power Engineering ConstructionCommunication engineering construction general contracting level 2Electronic and intelligent engineering professional contracting levelCivil Aviation Air Traffic Control Engineering and Airport Weak Current System Engineering Professional Contracting Class IIEngineering Design Building Intelligent System Special Class AConstruction Safety Production PermitComputer Information System Integration Qualification Level 1
Electrical and mechanical engineering construction general contracting IICommunication engineering construction general contracting level 2Building decoration engineering professional contracting secondaryElectronic and intelligent engineering professional contracting levelUrban and road lighting engineering professional contracting secondarySpecial engineering professional contracting is not classifiedSpecial engineering (special lightning protection) professional contracting regardless of gradeCivil Aviation Air Traffic Control Engineering and Airport Weak Current System Engineering Professional Contracting Class II
Class II general contracting of construction worksMunicipal Public Works Construction General Contracting Level IIElectrical and mechanical engineering construction general contracting IISteel structure engineering professional contracting secondaryBuilding decoration engineering professional contracting secondarySecond-Level Specialized Contracting for Building Mechanical and Electrical Installation ProjectsFire facilities engineering professional contracting secondarySpecialized contracting for foundation works Grade II
Electrical and mechanical engineering construction general contracting IICommunication engineering construction general contracting level 2Fire facilities engineering professional contracting levelSecond-Level Specialized Contracting for Electronic and Intelligent EngineeringHighway traffic engineering highway safety facilities professional contracting secondaryHighway Traffic Engineering Highway Mechanical and Electrical Engineering Professional Contracting Class ICivil Aviation Air Traffic Control Engineering and Airport Weak Current System Engineering Professional Contracting Class IIConstruction labor is not graded
Second-Level Specialized Contracting for Building Mechanical and Electrical Installation ProjectsSecond-Level Specialized Contracting for Electronic and Intelligent EngineeringProfessional contracting of urban and road lighting engineeringProfessional contracting for power transmission and transformation projectsCivil Aviation Air Traffic Control Engineering and Airport Weak Current System Engineering Professional Contracting Class IIConstruction labor is not gradedConstruction Safety Production PermitThe installation (repair, test) power facilities license installation class III
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