... offset printing ink, color printing ink solvent, intaglio printing ink, high-class offset printing ink.F-2138≥ 165≤ 20≤ 124000-600010-15High ... ≥ 5500≥ 8High molecular weight, high gel viscosity, low emulsification value, high solubility.High-class four-color offset printing ink, high-speed planographic offset printing ink ...