China 300GSM Duplex Board with White Back/Duplex board grey back, Find details about China 250gsm Duplex Board with Grey Back, Duplex Board Paper with Grey Back from 300GSM Duplex Board with White Back/Duplex board 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 |