Moisture 3.5%-4.5%, Thickness: 103-110 um Surface roughness ts ml/min: 75-175 Surface roughness bs ml/min: 100-200 Bending stiffness md:>110 mn Bending stiffness cd:>50 mn Opacity: 95 min Cie whiteness: 167 Cobb test: 27-33 g/m2 27-33 Suitable for: Stay flat after copying Leave no dust in the copy-machine Nice appearance-white and clean Nice touch-smooth and bulky No see through-print both sides Guaranteed for trouble-free operation. Capability: high speed copying100ppm, laser Capable: inkjet capable, fax capable. High performance for both sides printing/copying 500 sheets per ream 5 reams per box 1560 boxes per 20 ft container(with pallet) 1600 boxes per 20ft container( without pallet) 7800 reams total in one 20fcl( with pallet) 8000 reams total in one 20fcl( without pallet We can also pack based on the customer requirements