Rubber-plastic composite insulation return air system 

Return air system of bag air duct The bag air duct can be used not only as a supply air system to replace the traditional air duct, but also as a return air system. The return air system mainly adopts rectangular shape return air, which can be made of single layer fabric material or heat insulation composite material. 1. The interior is supported by a square skeleton, which maintains the square appearance of the air duct through the tension of the skeleton. 2. According to the different pressure in the tube, the air return mode can be adopted in many forms: micro-hole, small hole, diffuser, etc. 3. Can be customized according to the situation of the site a variety of different air back.