Size: 1220 x 2440, 1250 x 2500mmThickness:12mm,15mm,18mm, 21mmCore: poplar, birch, hardwood and so onGlue: MR, E1, E2, MelamineGrade: BB/BB, BB/CC, OVLFlattening and smooth in surfaceWarp allowed:less than1%, Thickness allowed: ± 0.5Flexibility: 5000-7948 mPaSurface strength: 24-75.8 mPa .