1)the brush is mainly used for paving operations to clear ground attachments; 2)clear milling work surface adhesion particles, enhance the binding force between the asphalt layer; 3)clear the surface of bridge, clear laitance; 4)clear these pollutants of highways and municipal roads; 5) clear the line on road surface and removal the oxide of metal surface; 6)clear the surface on coal yard,power plant and sea port.