Silicone Foam Tube:The hardness: from 10 Shore A to 40 Shore A./The density: 0.35g/cm3 to 0.68g/cm3./normal sizes : 8*3.4,22*6 Silicone Foam Tube:The hardness: from 10 Shore A to 40 Shore A./The density: 0.35g/cm3 to 0.68g/cm3./normal sizes : 8×3.4,22×6, 28×11.5,37×10mm etc.Density bears a reference to the hardness to a certain extent, the harder, the bigger.Application:Used for printing machines ...