With the development of construction machinery, the application of hydraulic transmission technology is becoming more and more widespread. The market demand for hydraulic products is strong. Foreign manufacturers have landed in the Chinese market one after another. In order to rejuvenate the relevant national industries and reduce the common failure rate in the movement control of walking machinery under the outdoor conditions such as agriculture and environmental protection buildings and to promote the technological progress in the related fields, a series of new electromagnetic multi-way combination valves have been developed and obtained a number of patents. After many years of use by many manufacturers, generally reflect the good results. The new electromagnetic multi-valve combination used in road sweeping vehicles, greatly improving the quality and competitiveness of the locomotive. The new electromagnetic manifold valve assembly novel, unique structure, easy installation, responsive, energy loss, anti-pollution ability, stable performance, high reliability. Ideal for walking machinery and other construction machinery to replace imported products.