... ,420mm, Core: 3", 2" 100% wood pulp ( featuring super quality ,and super brightness) Feature: 1, No absorption of dust, no jams ... curled 3, The paper smooth and uniform, without paper, to meet the printing needs 4, Paper clean, crisp and clear graphics; 5, Paper color and soft, for ... 95% 2). Substance:80 GSM single large engineering offset drawing paper in roll