TECHNICAL SPECIFICATION
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- Wood species: Solid Acacia Wood.
- Moisture: 8 – 12 %.
- Wood Stave (length): 150-500 millimeters.
- Wood Stave (width): 35-80 millimeters.
- Glue: D4.
| Face A | Face C | |
| Live knot | ≤15 mm, maximum 5 knot/m² spread evenly on the surface of the board, 2 small knots count as 01 big knot | Allowed ≤ 30mm to spread evenly over the surface |
| Dead knot | No | Allowed ≤ 15mm, handling by Japanese Koyo Bond putty mixed glue, stable, same wood color |
| Sapwood | No more than 10% on 1 base bar | Allowed on 100% based bar |
| Heartwood | No | Maximum 5 heartwoods on the surface, width 3mm, length 100mm |
| Insect | No | 1-2 points allowed, handling to become dead knot |
| Cracked | No | No |
| Decay | No | No |
| Green mildew | No | Light green mildew, no more than 15% of the surface |
| Snail mildew + black mildew | No | No |