This HOWO 6×4 synchronous chip seal truck integrates asphalt spraying and aggregate spreading in one pass, delivering uniform coverage, strong bonding and improved pavement durability. It is suitable for heavy-duty highway maintenance, preventive sealing, road restoration, municipal roads and industrial yard projects. The heavy-duty chassis and stable body structure support efficient field operation. Please confirm asphalt tank capacity, hopper volume, spraying width, spreading width,