ikoo gostar co. has a long history of supplying Oxidized Bitumen to bitumen factories, asphalt,companies,roofinsulationcompanies.Oxidized Asphalt or Blown Bitumen or Oxidized Bitumen 115/15 or Oxidized asphalt 115/15 or blown bitumen 115/15 or bitumen 115/15, Oxidized Bitumen 85/25, Oxidized Bitumen 95/15, Oxidized Bitumen 100/15,Oxidized bitumen 150/5, oxidized asphalt 115/15, oxidized asphalt 85/40, Oxidized bitumen 85/40, ?, all grades of Oxidized Bitumen will produce according to order