QBY pneumatic double diaphragm pump, is the company to introduce advanced foreign technology and design of a new generation of products, its unique design characteristics of pump adapt to adapt to other pump can not place, special of inflammable places pumping all kinds of corrosive liquid, with particles of liquid with high viscosity, highly toxic, easy to volatile liquid can smoked light absorption, with self suction pump, submersible pump, shield pump, slurry pump and pump and other impurities conveying mechanical advantage.