3WPZ-600 is a new machine of sprayer, which is developed independently by our company. This product which includes fertilization and spray is a kind of efficient self-propelled spray boon sprayer, and it can effectively improve the work efficiency. The product uses diaphragm pump and improves the traditional spray lance structure. So, it can widely improve the uniformity of spray. The advantages of the machine are long-life of spray lance structure, reliable work of the water pump, adjustable of spray amount, uniform and reliable of fertilization. The product has been through the Compulsion Certiffication(3C) and Identification of popularizing agricultural machinery in by experts, who believe that the machine can well satisfy all plant protection of crop growth, and its overall technical level is in the domestic leading position. For a long time, our products are exported to , and and have a great public favor in buyers.