... 2.Manufacturing methodsOrdinary rubber board is made of rubber and chelating agent by matching, mixed refine, rolling a slice ... ground;Oil resistant plastic board,The working medium: gasoline, kerosene, diesel oil, and other mineral oil kind, Working temperature: - 30 ~ + 50 ... dilute acid, alkali (acetic acid, nitric acid and alkali except) or and other chemicals. Used for liner, aprons; etc.Cold ...