Plain chip board 1)Size:1220x2440mm, 2)Thickness :15,16,18,25,28,30,35,38,44mm 3)E1 or E2 4)Density : 680-700kgs/cbm Specification for plain chip board :1.Size:1220x2440mm,2.Thickness:15,16,18,25,28,30,35,38,44mm3. Formal dehyde emission : E0, E1 or E24. Density : about 700kgs/cbm,5. Moisture centent : ≤6.0%6.Modulus of rupture : ≥13Mpa7.Screw holding face :≥1100 Screw holding edge:≥700