1) Raw material: Radiata Pine with the live knots that the dia less than 3cm. 2) Moisture content: 8%-14% 3) Tolerance of size: +/-0.4mm for thickness, +/-0.4mm for width, +/-0.79mm for length. 4) the side bending is less than 1.5 mm/m. 5)smooth surface of the product1) Raw material: Radiata Pine with the live knots that the dia less than 3cm. 2) Moisture content: 8%-14% 3) Tolerance of size: +/-0.4mm for thickness, +/-0.4mm for width, +/-0.79mm for length. 4) the side bending is less than 1.5 mm/m. 5)smooth surface of the product