... product has a temperature, pressure, wear, "one drainage," "life-long self-absorption" and many other features. At present production of stainless ... "electric air control valve", truly a "one-draining, life-long self-priming." 4, little vibration, low noise, mobile and flexible, ... highly automated systems. 6, the pump uses the most advanced hydraulic model, the efficiency of the pump on the basis of ...