| Material Code | Definition |
|---|---|
| BD | General extraction material with domestic sale, trimmed, completely annealed, removed defective products of head and end. |
| BG | General usage material with domestic sale, trimmed, completely annealed, unremoved defective products of head and end. |
| BL | Board material that its surface quality requirements are slightly higher with domestic sale, trimmed, completely annealed, removed defective products of head and end. |
| BP | Elevator material, high-grade door sheet material or sand sliinging material that the surface quality requirements are extremly high with domestic sale, trimmed, completely annealed, removed defective products of head and end. |
| BR | Re-rolled material with domestic sale, trimmed, completely annealed, removed defective products of head and end. |
| BH | Hard board material with domestic sale, trimmed, cold-rolled work hardening, removed defective products of head and end. |