Bitum tashigich
Bitum tashigich – bitumni ish joyiga tashish qizdirilmasdan tashishda tsisternadagi bitum haroratining saqlanishini, tsisternadagi bitumning ish haroratiga qadar qizdirilishini, tsisternani chetlab o’tib, bitumni haydash hamda bitum eritish qozonlari va bitum omborlaridan bitum olishni ta’minlaydi.