Viscosity Grade Bitumen is petroleum grade bitumen, which produced from fractional vacuum bottom which comes from distillation of crude oil, which feasible appliance and behavior changes according to its temperature. It is classified in 4 groups: VG 10 (mostly used in spraying applications), VG 20, (paving in cold climate & high altitude regions) VG 30, (construct extra heavy duty Bitumen_pavements) VG 40 (used in highly stressed areas such as intersections).publtd company is manufacturer and exporter of viscosity bitumen in drum packing with the best quality.