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Shenyang Aost Ventilation Equipment Co., Ltd. is an emerging enterprise that specializes in the manufacturing of air conditioning equipment, fans, electrical supporting equipment, and central air conditioning accessories. The company is located in the Shenyang Machinery and Pump Industrial Park in Liaoning Province, covering an area of 30000 square meters with convenient transportation. It currently has a production workshop of over 18000 square meters, more than 40 large-scale production equipment, more than 100 employees, and 23 technical personnel, with strong technical strength, The company mainly produces central air conditioning terminal equipment and smoke exhaust system equipment, such as mixed flow fans, diagonal flow fans, fire dampers, and other products. It currently has eight factory direct offices in Beijing, Tianjin, Zhengzhou, Xi'an, Shenyang, Dalian, Changchun, and Harbin. Since its establishment in 2009, the company has adhered to the business philosophy of honesty and dedication, backed by strong technical strength, based on product quality with high cost-effectiveness, guided by advanced enterprise management, and aimed at improving after-sales service, and has won unanimous praise from a large number of users. The company has also flourished and become a trusted friend of users.