2. First-class qualification of steel structure engineering contracting.
3, broadcasting, communication tower and mast production license (full range)
4. 750kV production license for transmission line tower 5. Special qualification of steel structure manufacturing enterprises in China.
6. ISO900 1 Quality System Certification
7. o14001environmental management system certification
8. o18001occupational health and safety management system certification
9, special equipment manufacturing license
..... and many other qualifications and certificates.