... , 28, 30, 40, 45, 48mm. Random length of Stave:150-500mm.(3.) Moisture Rate: 8%-12%. Sanding ... without open gluelines. (4.)Finger Joints: Quality of joints between lamellae will totally exclude breakout, gaps ... on face(5.) Quality Standard:A GradeNo dead knots (pin knots allowed, <1mm), little sound knots, <5mm ... other building material. Finger Joined Boards of pine,china fir,paulownia,Oak,Ash,walnut etc