Heavy oil, also known as fuel oil, is a dark black liquid. According to the classification methods of international conventions, heavy oil is called sustainable oil. As the name implies, this kind of oil is relatively viscous and difficult to volatilize, so once it is landed, it is difficult to remove
Heavy oil, also known as fuel oil, is a dark black liquid. According to the classification methods of international conventions, heavy oil is called sustainable oil. As the name implies, this kind of oil is relatively viscous and difficult to volatilize, so once it is landed, it is difficult to remove
Heavy oil, also known as fuel oil, is a dark black liquid. According to the classification methods of international conventions, heavy oil is called sustainable oil. As the name implies, this kind of oil is relatively viscous and difficult to volatilize, so once it is landed, it is difficult to remove