Grade A design qualification in the metallurgical industry

Class A Design Qualification for Architectural Decoration Engineering Design

Special grade general contracting for metallurgical engineering construction

First level general contracting for construction 

First level general contracting for municipal public works construction

First level general contracting for mechanical and electrical engineering construction 

First level professional contracting for steel structure engineering 

First level professional contracting for architectural decoration and renovation engineering

Second level professional contracting for lifting equipment installation engineering 

Second level professional contracting for environmental engineering  

Second level professional contracting for power transmission and transformation engineering 

Second level general contracting for petrochemical engineering construction 

Second level general contracting for power engineering construction

Second level general contracting for mining engineering construction

Second level general contracting for highway engineering construction