Applies to: municipal road and highway maintenance, also applies to the trenches, factories, sidewalks, squares, residential roads, pipeline backfill and lawn maintenance jobs. 2. Features: simple operation, easy maintenance, welt strong exciting force, good working efficiency. Diesel large single-round mini roller DL700 single drum compactor multi-gear control and coal business is different, the huge investment in coal chemical projects, diesel largest single wheel roller some small items and even some local pillar industry, which has not simply with the pros and cons of a business or project to measure up. Lessons of history tell us, DL700 multi-gear control single drum compactor market today does not allow any big to fail in business, no matter what business or project, they do not obey the constraints of the natural environment, do not meet the laws of the market operation, it is necessary resolutely rectify