> Product Introduction
    Our company uses high-quality embossing aluminum foil double-surface material, fills its inside with rigid foam polyurethane as the core and specializes in the continuous production of double-surface rigid foam polyurethane sandwich board. We shear a V-shape trough according to the size request on the board with a double-450 cutter and spread the glue. After being folded, it can be made into air ducts of all specifications and shapes. By using a press brake, the board can be bent into an arc, which is convenient for elbow parts. And by applying glue, sealing stripes, aluminum-wrapped flange and reinforcing aluminum alloy poles, etc., we can patch and install the air ducts of all shapes on-site, and that is how THPU air duct system is made. This system has high technology content, is the replacement product of central air conditioning air duct. It has been widely approved and used in the domestic market, and has the remarkable social and the economic benefits.

> Features:
1.Heat Insulation and Energy-saving:
Energy-saving Index—
Non-insulation galvanized iron board air duct 0%
8mm-thick insulation galvanized iron board air duct 59.5%
25mm glass cotton insulation galvanized iron board air duct 79.14%
21-thick metlbond foam compound insulation air duct 85.23%
20-thick THPU air duct 87.23%
2. Light, Stable:
Each square meter only weights 1.4 kilograms, it only requires a support or the hanging bracket at about 4 meters distance during installation. This can

effectively decrease the load to the building.
3. Convenient and Swift Construction
On-site manufacturing and installation, simple tools, labor saving and timesaving. Production efficiency enhances 4-5 times compared to the traditional method.
4. Long Working Life with Nice Appearance THPU air ducts’ working life is more than 20 years; with double-surfaced compound aluminum foil, it can be exposed or sprayed with all kinds of paints to the surface.
5.Clean and Pollution Free
Inside and outsideare both covered with the aluminum foil material, the perfect sealing makes the inside and outside of the air duct suitable to be flushed directly; After the installation finishes, all surfaces are covered with aluminum foil to guarantee the hygiene requirement.

>Structure：
Double-surface 0.08mm-thick embossing aluminum foil, the inner layer is 20mm high-density fire-retardant hard polyurethane.

> Application Scope：
Ideal material used for making air ducts of central air conditioning, mainly suitable for the central air conditioning projects of buildings such as airports, foodstuff factories, hospitals, shopping malls, factories, office buildings, stadiums, restaurants, hotels, and so on. It can also be applied to the thermal insulation layer in the modern sauna room, the sound-insulated separation layer of clubs’ box rooms, the thermal insulation layer of water tanks, heat insulating layer of walls, roofing thermal insulation layer, and decoration layer, etc.