China 250GSM Offset Printing Paper Sizes Coated White Duplex Board with Grey Back, Find details about China Coated Duplex Board with Grey Back, Top Craft Liner Board from 250GSM Offset Printing Paper Sizes Coated White Duplex Board with Grey Back
Item | Unit | Property |
Gramm age <= | g/m2 | 230,250,300,350,400 ,450 ,500 |
Gramme tolerance <= | % | ±5 |
Width tolerance <= | % | ±5 |
Tightness<= | g/m2 | 0.80 |
Brightness ( coating side) ≥ | % | 82 |
Roughness <= | m/s | 2.4 |
Smoothness ≥ | s | 55 |
Printing brightness ≥ | % | 55 |