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About product and suppliers:
            31,383 china duct fan products are offered for sale by suppliers on Alibaba.com, of which axial flow fans accounts for 41%, centrifugal fans accounts for 34%, and hvac systems & parts accounts for 3%. 

A wide variety of china duct fan options are available to you, such as ce, ccc, and ul. 

There are 31,382 suppliers who sells china duct fan on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Taiwan, China, and India, from which the percentage of china duct fan supply is 99%, 1%, and 1% respectively. 

China duct fan products are most popular in South Korea, United States, and Canada.