We should all be in the construction of the road will often see a large equipment, so the roller is also divided into a variety of, not the one we see oh. Static roller is one of the most widely used large roller equipment. Compacted gravel, crushed stone, sand, sand and gravel mixture, asphalt concrete and coal slag and other materials, is the construction of roads, railways, municipal engineering, airports, industrial sites and parking lots and other ideal compaction equipment.