Fresh air ventilation Manufacturing Ltd 

Qingdao Fresh Air Ventilation Manufacturing Co, Ltd, established in 2016, is a premier manufacturer specializing inthe desian, research, development, and production of high-quality PE ventilation ducts and related accessories. As a leading source factory with an annual production capacity of 5.2 million meters of various ducts, we are fully equipped to meet the diverse needs of clients across the globe.
More details: www.peducts.com