Fujian UNT Industry Co., Ltd. (formly known as "Xiamen UNT Duct Material Co., Ltd.") was established by several co-founders who have more than 15 years experience in PU & PIR Foam Industry. UNT is the Chinese leading manufacturer of Polyurethane (PU)/ Polyisocyanurate (PIR) Pre-insulated Duct Panel for HVAC system, PU/ PIR Foam Pipe Insulation, PVC Profiles for air ducting and other accessories and tools.