Medium Walk Behind Snow Sweeper PN110 is the most cost-effective of all models, but also the highest sales model over the years. It can focus on promoting to customers, regardless of appearance or practicability, it is the product of preference for most customers. In many domestic provinces and overseas countries and regions it have a broad customer base.. At present, two snow seasons have been tried out in airport customers, which have been used to clean up a large area of snow on the airport, and good results have been achieved. http://www.pivotcleaningmachine.com