Not just cheap. As far as I know, there are dozens of rotary fans in China, most of which are small factories. Although these small factories are cheap, product quality and after-sales are a big problem. It is recommended to buy Gong Jin and Pepsi-Cola, whose products are more reliable and cost-effective. Top ten brands of fans in China: Shaanxi Drum (a famous trademark in China), Zhanggu Zhanggu (a top 500 enterprise in China), Changfeng (a famous brand in Hubei), Pepsi Cola (a famous brand in Jiangsu), Gong Jin (a famous brand in Shandong), Shanggu (a famous brand in Shanghai), Backing, Sanfeng (a famous trademark in Hubei), Jintongling (a famous brand in Jiangsu) and Gu Wu. But there are too many fakes in China. The top ten brands in the high-pressure blower industry are: Shenyang Blower, Shaanxi Blower, Shandong Zhangqiu Blower, Changsha Blower, Shandong Gong Jin, Zhejiang Yilida Blower, Zhejiang Shangfeng Hi-Tech, Jintongling Technology, Southern Blower and Haodunhua Project.

1, Shenyang blower group co., ltd.

Started in 1934, an earlier professional manufacturer of fans, with the ability to design and manufacture large-scale domestic equipment, specializing in R&D/ design/manufacture series of fans and pumps.

2. Shaanxi Blower (Group) Co., Ltd

Founded in 1968, Shaanxi Drum Group is a large-scale complete equipment enterprise specializing in designing and manufacturing turbine machinery, focusing on compressor manufacturing and distributed energy system solution providers and service providers.

3. Shandong Zhangqiu Blower Co., Ltd.

Founded in 1968, it has rich technical experience in fan design/manufacturing, and integrates R&D/ production/processing/manufacturing of mechanical products such as roots fans/centrifugal fans/industrial pumps/ventilators/pneumatic conveying systems.

4. Changsha Blower Factory Limited Liability Company

Changsha Blower Factory Co., Ltd. (formerly Changsha Blower Factory) is a national large-scale backbone enterprise, a top 500 enterprise in China machinery industry, a designated manufacturer of national major technical equipment supporting fans, and a drafting unit of national standards for Roots blowers.

5. Shandong Gong Jin Co., Ltd

Established in 1996, Harbin Institute of Technology is a high-tech enterprise specializing in R&D and manufacturing Roots blower/centrifugal blower/pneumatic conveying complete equipment.

6. Zhejiang Yilida Fan Co., Ltd..

Founded in 1994, it is a manufacturer of building fans/engineering fans, and owns brands such as Yilida/Walter/Furama /Mar.

7. Zhejiang Shangfeng Hi-Tech Professional Wind Industry Co., Ltd..

Founded in 1974, it is a fan manufacturer and comprehensive service provider engaged in the production/sales of R&D/ large ventilation equipment.

8. Jintongling Technology Group Co., Ltd.

Founded in 1993, it is a well-known provider of engineering technology solutions for fluid machinery and compressors in China, and a technology-intensive modern equipment manufacturing service-oriented enterprise integrating R&D and manufacturing.

9. Southern Fan Co., Ltd.

Founded in 1988, South China Co., Ltd. is a large-scale enterprise specializing in the design, product development, manufacturing and sales of ventilation and air handling systems, mainly for nuclear power, subways, tunnels, large industrial and civil buildings, energy engineering and other fields.

10, Haodunhua Engineering Co., Ltd.

Founded in 1854, it is a large group enterprise engaged in the design, manufacture and sales of air and gas treatment equipment. Its main products are industrial fans/process gas compressors/rotary heat exchangers, which provide customized services on demand and are world-renowned for their high performance.