United petrol is specialist in bitumen and bitumenous product consist of penetration bitumen 10/20,Bitumen 20/30,bitumen 30/40,bitumen 40/50, bitumen 60/70 and bitumen 80/100 also bitumen 100/120 ,oxidized bitumen or oxidised asphalt including oxidized bitumen 115/15,oxidized bitumen 90/40,oxidized bitumen 85/25,oxidized bitumen 95/25 and oxidized bitumen 150/5 also natural asphalt or Gilsonite for inking,Gilsonite for drilling, Gilsonite roofing and Gilsonite for road construction and Gilsonite...