1、Construction of petrochemical engineering projects;
2、Construction and installation engineering;
3、Construction of fire protection engineering;
4、Manufacturing of Class I pressure vessels and Class II low and medium pressure vessels;
5、Installation of pressure pipelines of Class GA1, Class GB1, Class GB2, and Class GC1;
6、Boiler installation and modification;
7、General freight transportation;
8、Contracting foreign projects;
9、Fabrication and installation of steel structure engineering and grid structure engineering;
10、Electrical instrument installation;
11、Transportation and lifting of large equipment;
12、Non-destructive testing, physical and chemical testing services, etc