Hao Hai PU foam pre-insulated duct panel

Hao Hai is the leading manufacturer of PU foam and pre-insulated duct panel in China since 2000.
Hao Hai one-component polyurethane foam is suitable for filling, insulating, sealing, mounting, caulking, stopping and soundproofing of large and small holes in concrete, plaster, brick, floorboards, glass or wood. It is specially recommended for mounting of windows and doorframes, heat insulation of sewerage and central heating, fixing and isolating of wall panels and more. 
Haohai duct is a new material duct made of PIR/PU pre-insulated duct panel. its advantages such as energy saving, environmental protection, no pollution, light & easy to installing, fireproof, soundproof, nice appearance and long service life can not only meet the demands of duct material, but also avoid the disadvantages of traditional materials. The advantages of Haohai duct in performance, cost and manufacture make it true to design and construct a modern air conditioning system.