Product Introduction: Made of PVC material, it has the characteristics of high strength, light weight, good corrosion resistance, low aging resistance, and low noise. Suitable for discharging corrosive gases containing certain concentrations of acids, alkalis, salts, etc. in chemical, textile, electroplating, laboratory and other places, and can also be used for ventilation and air exchange in general factory buildings. It is not allowed to exclude corrosive gases such as halogen derivatives, ketones, etc. containing aromatic compounds, aliphatic and aromatic hydrocarbons.