Xiamen UNT Duct Technology Co., Ltd. was established in 2013 by several co-founders who have more than10 years experience in PU & PIR Foam Industry. It is conveniently located in the beautiful seaside city of Xiamen where have the 7th biggest sea port in China. Xiamen UNT Duct Technology Co., Ltd. is the leading manufacturers in China of polyurethane (PU)/ Polyisocyanurate (PIR) Duct System for HVAC air distribution. UNTDuct System is not only based on pre-insulated duct panels, but it also consists of accessories, cutting machinery, tools and know-how necessary for the construction and installation in a masterly fashion. We has a strong sales team and service network worldwide, more than 90% of our products are exported to over 30 overseas countries, such as Australia, Albania, Brazil, Colombia, Dominica, Kuwait, Myanmar, Qatar, Saudi Arabia, Spain, Thailand, U.A.E, Venezuela.