Bitumen Penetration Grade 10/20 Description of Bitumen 10/20 Bitumen 10/20 is a type of penetration grade bitumen that is produced by the non-destructive refining of crude oil during petroleum refining.RAHA Bitumen 10/20 is hard penetration grade bitumen using as paving grade bitumen suitable for road construction and repair also for the production of asphalt pavements […]
