AA Quality Roll Duplex Paper Board Grey Back 250gsmWe provide AAA, AA and A grade quality duplex board grey back. Suitable for any kind famous brand offset printer, for example HEIDELBERG, ROLAND, KBA, MITSUBISHI, LITHRONE etc .Excellent calandering, hot-stamping and laminating result. AAA Grade 230-500gsm, suit for any colors high speed printing, excellent printing result, and excellent stiffness. AA Grade 250-450gsm, suit for 8 colors high speed printing, nice printing result, and nice stiffness. A Grade230-450gsm, suit for 4 colorsordinary speed printing, fine printing result, and fine stiffness.Super surface coating , good surface smoothness, stable ink absorbability, low surface soughness and righ printing dots, makes excellent printing result. Good surface decoration feature assures excellent calandering, hot-stamping and laminating results. Outstanding paper stiffness is a strong support for carton laminating and die-cutting