| Material Code | Definition |
|---|---|
| A | General tube material with domestic sale, untrimmed, completely annealed, unremoved defective products of head and end. |
| D | General extraction material with domestic sale, untrimmed, completely annealed, removed defective products of head and end. |
| G | General usage material with domestic sale, untrimmed, completely annealed, unremoved defective products of head and end. |
| L | Board material that its surface quality requirements are slightly higher with domestic sale, untrimmed, completely annealed, removed defective products of head and end. |
| P | Elevator material, high-grade door sheet material or sand sliinging material that the surface quality requirements are extremly high with domestic sale, untrimmed, completely annealed, removed defective products of head and end. |
| R | Re-rolled material with domestic sale, untrimmed, completely annealed, removed defective products of head and end. |
| H | Hard board material with domestic sale, untrimmed, cold-rolled work hardening, removed defective products of head and end. |