| Material Code | Definition |
|---|---|
| XA | General tube material with export, untrimmed, completely annealed, unremoved defective products of head and end. |
| XD | General extraction material with export, untrimmed, completely annealed, removed defective products of head and end. |
| XG | General usage material with export, untrimmed, completely annealed, unremoved defective products of head and end. |
| XL | Board material that its surface quality requirements are slightly higher with export, untrimmed, completely annealed, removed defective products of head and end. |
| XP | Elevator material, high-grade door sheet material or sand sliinging material that the surface quality requirements are extremly high with export, untrimmed, completely annealed, removed defective products of head and end. |
| XR | Re-rolled material with export, untrimmed, completely annealed, removed defective products of head and end. |
| XH | Hard Board material with export, untrimmed, cold-rolled work hardening, removed defective products of head and end. |