| Frame type | Big span portal frame |
| Project name | Prefabricated steel structure |
| Appilcation | Pipe rack |
| Service | EPC service, Design,manufacturing,shipment and installation |
| Desing standard | AISI、ASTM、BS、DIN、GB、JIS |
| Desing software | PKPM, 3D3S, SAP2000, Midas Gen, and STAAD |
| Certificate | SGS,CE,CWB,AISC,EAC |
| Exterior decoration | Glass curtain wall/Aluminum-plastic panel |
| Painting | Epoxy zinc-rich, galvanized |
| Place of loading | Qingdao, China |
Designed as underground corridors with dedicated compartments for different utilities (power, water, telecom, gas). Includes access shafts, ventilation, drainage, and monitoring systems.Reinforced concrete (precast segments or cast-in-place), durable polymers for linings and conduits, corrosion-resistant fixtures.