The company was founded in 2010 in Shanghai, China, and focuses on “intelligent manufacturing” of high-tech products in the field of environmental technology. It not only provides customers with excellent and safe high-performance products, but also provides professional and personalized ventilation and cooling solutions according to the different needs of customers. Keller introduced HVLS fan products to China, developed it into an emerging industry, and continued to drive the development and prosperity of the industry. The company is mainly engaged in the R&D, production, sales, installation and related technical services of HVLS fans. The company's main products are HVLS fans.