2013年（11）
发布时间：2013-05-04 16:18:25
The fourth way to set the pump suction tank before, as shown in figure 5. In this way the need to pump water pipe is provided with a water tank, water pump in the first run, the tank should artificial filled with water, the first time after stopping operation, because the water tank is higher than the height of the water pipe in pipe the water height, ......【阅读全文】
