Petroleum asphalt is a product of crud ★e oil processing, which is αδ↔ a black£§ or black-brown viscous liquid, se ♠×mi-solid or solid at room temperature, m∞γ£ainly used in in§•frastructure construction materials, rα← ₽aw materials and fuels, construction in≤$dustry, agri∏φ≤culture, water conservancy engineerφ ing, industry and other fields.
