| material | Aluminum alloy | weight (kg) | 0.5 |
| Thickness | 2.5/ 2.1/ 1.6/ 2.6mm | Thickness Tolerance | ±0.15 |
| Surface Hardness (Shore-D) | 75±5, 80±5 | Density (Kg/m3) | 880±15, 960±15 |
| Size (inch) | 37" *49"/ 41" *49"/ 43" *49" | Size Tolerance (mm) : | ±3 |
| Warpage | ≤0.6% of dia |