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Aerodrome Visual Aids for Navigation Engineering professional contractor-Grade 1 Civil Aviation Air Traffic Control Engineering and airport ELV system engineering professional contractor-Grade 1+"\n"
Aerodrome Visual Aids for Navigation Engineering professional contractor-Grade 1 Civil Aviation Air Traffic Control Engineering and airport ELV system engineering professional contractor-Grade 1 -
Waterproofing, anti-corrosion and heat preservation engineering professional contractor-Grade 2 etc. +"\n"
Waterproofing, anti-corrosion and heat preservation engineering professional contractor-Grade 2 etc. -
Construction labor permit regardless of grade Mechanical and electrical engineering construction general contractor-Grade 3 Building Construction general contractor-Grade 3+"\n"
Construction labor permit regardless of grade Mechanical and electrical engineering construction general contractor-Grade 3 Building Construction general contractor-Grade 3 -
Safety production Permit+"\n"
Safety production Permit -
Certificate of Quality Management System of Construction Organization+"\n"
Certificate of Quality Management System of Construction Organization -
Certification of Environmental Management System+"\n"
Certification of Environmental Management System -
Certification of Occupational Health and Safety Management System+"\n"
Certification of Occupational Health and Safety Management System
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