HOWO 6x4 Synchronous Chip Sealer with 8CBM Asphalt …
HOWO 6x4 Synchronous Chip Sealer with 8CBM Asphalt Tank 12CBM Chip Bucket. Synchronous chip seal truck is one of the most successful road-resurfacing methods, designed to extend the life of a road's driving surface. The chip seal process involves applying a layer of asphalt emulsion and aggregate rock over the road.