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| Tolerance | ±3% |
| Project | Specification |
| Steel Column | Q235, 355B welded H-section column/square pipe column/box column |
| Steel Beam | Q235, 355B welded h-shaped steel/hot-rolled h-shaped steel |
| Steel Purlin | C/Z section purlin or square pipe column |
| Downspout | UPVC |
| Gutter | Stainless steel gutter/UPVC gutter |
| Roofing Materials | Corrugated steel plate/sandwich plate |
| Wall Material | Sandwich panels and glass curtain walls |
| Door | Aluminum door |
| Window | Aluminum windows |
| Port | Tianjin |