Quality is an important parameter in bitumen business, so that many companies have gradually lost their customers by offering low quality bitumen at a lower price to attract customers, and their circle of customers has become smaller, as well as buying companies and They have made the consumer more distrustful, but the issue that has been raised about the bitumen of Tivan company in Turkey, Romania, Georgia, Armenia and other neighboring countries is the significant difference in our quality with other bitumens supplied in these countries, especially It is European, which is presented according to the European standard and the analysis sheet, and the testing and analysis of each machine is suggested to the customers separately to ensure the quality.