1) for 3Ply mask: 25gsm, 175mm width*2000m/roll, white or medical blue colors, for top side (1st layer); 25gsm, 195mm width*2000m/roll, white color for back side ( 3rd layer ); 2) For N95 masks: 50gsm, 250mm or 260mm width*1500m/roll, white color, for top side; 25gsm, 250mm or 260mm width*1500m/roll, white color for back side;
