we are a professional OSB manufacturer and supplier in china, we have five years experience in this field and enjoy good reputation at home and abroad.   25mm OSB   1. size: 1220*2440mm   2. material: poplar flakes, thickness less than 1mm (0.3-0.7mm)   3. glue: MR, melamine   4. grade: OSB2, OSB3   5. thickness: 6-30mm   6. tolerance: +/- 0.8mm   7. density: 680-700kg/CBM   8. packing: standard OSB pallet and covered by cartons then PVC tape for strength.   9. usage: sidewall, ceiling, floor, underboarding, furniture and so on   Features: our OSB have very big density, 680-700kg/CBM, so our product have a very good MOE(Modulas of Elasticity), internal bond, bending strength and very good nail holding power.