Birch blanks (board, bar)
Attributes
| Wood species | Birch (Betula spp.) |
| Humidity | KD277wax% CONTENT超过5小时。 |
| Density | 600-650 kg/m³ |
| Hardness (Brinell) | 3.5 HB |
| Standard sizes | Thickness: 25–50 mm, width: 50–200 mm, length: 500–3000 mm |
| Sorting standard | GOST 2695-83 |