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Grade II Qualification for General Contracting of Mechanical and Electrical Engineering Construction
2025.12.06
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Grade II Qualification for General Contracting of Building Construction Engineering
2025.12.06
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Grade II Qualification for General Contracting of Petrochemical Engineering Construction
2025.12.06
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Grade II Qualification for Specialized Contracting of Electronic and Intelligent Engineering
2025.12.06
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Grade II Qualification for Specialized Contracting of Steel Structure Engineering
2025.12.06
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Construction Labor Service Enterprise Qualification
2025.12.06
Qualifications
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