Pressure fan in the roof since the vertical type pressure delivery outlet, pressure blower, pressure outlet air temperature is adjusted according to rely mainly on building air conditioners such as central air conditioning, Heilongjiang pressure delivery outlet, ventilation and air temperature can be selected and unified pipeline During the warranty period due to a failure of our products appear, I will 5 working days after receiving the notice to the field service until the fault completely ruled out, the product is completely back to normal operation. Shenyang pressure delivery outlet, rich ventilation equipment (certified), pressure delivery outlet provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (0) is the leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Rich ventilation equipment in leadership with the staff warmly welcome all inquiries negotiations to create rich, ventilation a better future.