Fan coil types: Horizontal concealed fan coil, fan coil surface mounted horizontal, vertical concealed fan coil units, fan coil vertical surface mounted, wall-mounted fan coil units, fan coil units and other high column; The new air unit categories: Ceiling new air handling units, new air unit vertical, horizontal, etc. The new air unit; new wind ventilators categories: Ceiling new wind ventilators new wind ventilators horizontal, vertical, etc. The new wind ventilators; air conditioning parts categories: aluminum outlet, aluminum blinds axial fan specifications, off more Yefeng flow valve, damper, smoke vents, fire air, plate discharges, fan coil three-speed switch, fan coil thermostat , fan coil electric valves, new air unit coolers, etc; when this distance is very small axial fan size, bit stream and trail changes will impact 220 axial fan blades may also be used as sound barriers, and strengthen neighboring blades pulsating blade lift generated column on sound radiation. This effect depends on the lift pulsation-related acoustic wavelength as compared with the size of the blade barrier. Within this ratio is more than 2 frequency range, due to the impact caused by changes in the intensity of radiation is the most significant. Therefore, when the upstream and downstream of the radiation noise of the blade has the same number of leaves, and the leaves of the two columns of each of the blades on both sides of the source and at the same time constituting a sound barrier with a rotor blade meet, this effect will be stronger. Axial fans Samples | Rich ventilation equipment (certified) | axial fans by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) (www.frtfsb.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Rich ventilation equipment in leadership with the staff warmly welcome all inquiries negotiations to create rich, ventilation a better future.