Quality square wall axial fan] preferred Texas Feiyu Tel: the 13,969,272,212 XBDA low noise square wall-mounted axial flow fan with the apparent high efficiency, low noise, smooth running characteristics. The impeller is made of aluminum alloy is widely used in industrial and mining, civil construction, stadium, and a variety of entertainment wall exhaust, and has the following characteristics: a beautiful appearance, easy installation. The overall mechanism was a square, before installation, the wall according to the different types of reserve square hole. Installation, the fan from the wall the outside into the hole in the wall. Between the casing and the wall plug can be rubber or square timber. 2, fans rely on the external walls of the side equipped with aluminum alloy weatherproof outlet. You can prevent outdoor rain and wind indoor intrusion. 3, the fan with a muffler shell, built-in sound-absorbing material. 
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