Zhejiang Juying Fan Industry (浙江聚英风机工业有限公司) has spent three decades developing and manufacturing fans and air-handling equipment in Shangyu, Shaoxing. Its range includes centrifugal fan cabinets and axial fans for high-temperature fire smoke exhaust and duct pressurisation, rooftop fans, and patented weather- and fire-rated fan enclosures, as well as general building, underground-space and industrial ventilation systems. Its fire smoke exhaust fans and smoke dampers hold fire product certifications 5982024ZY060024, 5982024ZY060045 and 5982024ZY060046 from the Tianjin Fire Research Institute of the Ministry of Emergency Management.