... datas are as following: Density: 60-65 kg/m3 Aluminum thickness: 80 Macro Dimension: 4000*1200*20 mm Temperature range: ... -30 years safety and health: Non-toxicity and innocuity, double-face composite aluminum foil. Manufacture and installation: short construction ... , totel, hospital, office building, marketplace. We export phenolic air duct by panels with all of the necessary installation tools. fire ...