For export steel structure projects, fabrication is only part of the job. Components must arrive with marks that match the drawings, packing list, and installation sequence. Poor marking can create site delays even when the steel itself is fabricated correctly.
1. Use consistent piece marks
Each component should have a clear piece mark that matches the drawing and packing list. The mark should be readable after coating, handling, and transport. If labels may be damaged during shipment, use both painted marks and physical tags where appropriate.
2. Connect marks to drawings
The site team should be able to identify where each component belongs without guessing. Component marks should connect to drawing numbers, grid lines, floor levels, building zones, or erection areas.
3. Label bundles for unloading
| Label item | Purpose |
|---|---|
| Bundle number | Connects packed steel to the packing list. |
| Component range | Shows which marks are inside the bundle. |
| Area or sequence | Helps unload near the correct installation zone. |
| Weight and handling note | Supports safe lifting and unloading. |
4. Separate small parts
Bolts, clips, brackets, plates, and other small parts are easy to lose. They should be packed in marked boxes or bags and listed separately. For multi-building projects, small parts should be separated by area or shipment batch.
5. Use a marking list
A marking list should include component mark, quantity, drawing reference, bundle number, coating status, and shipment batch. It should match the packing list and be available to the site before the containers arrive.
6. Common marking problems
- Marks are painted over or hidden after packing.
- Bundle labels do not match packing lists.
- Small parts are mixed across different building areas.
- Component marks use a different system from the erection drawings.
- Shipment batches are not aligned with installation sequence.
Buyer note
Before shipment, request photos of component marks, bundle labels, small-part packages, and container loading. These photos help the site team prepare unloading and sorting before the steel arrives.