MDF made of pine and hard wood, MEET GB/T 11718-1999 STANDARD,AND E2 STANDARD, inner structure intensity ≥0.80 Mpa swell rate)< 9% moisture: 4～11.7 density:720~780kg/m3 formaldehyde emission≤40mg/100g exterior structure intensity ≥1.5 Mpa Normal size:1220*2440*2.5~25mm ANY INTEREST PLEASE CONTACT US.