Nooling underground garage ventilated FRP pipe inorganic FRP duct manufacturer 1. Inorganic FRP duct has high strength and is used for direct burial under the driveway. There is no need to add a mixed soil protection layer, which can speed up the construction progress of the project. 2. Good toughness, can resist damage caused by external heavy pressure and foundation settlement. 3. Electrical insulation, grade A non-flammable, good heat resistance, can be used for a long time at 130 degrees high temperature without deformation. 4. Corrosion resistance, long service life, inorganic FRP duct can resist the erosion of various corrosive media such as acid, alkali, salt and organic solvents. 5. Small specific gravity and light weight. 6. Inorganic FRP duct has no electrical corrosion, non-magnetic inorganic FRP air duct price is made as a whole one-time molding, and has the advantages of good overall structural performance and high tightness. It also has acid and alkali resistance, and can be used as a pipeline for conveying acid-alkaline gas. Less investment in machinery and equipment, less cost investment, and more affordable price. The manufacturing process of the non-combustible inorganic inorganic FRP duct is simple, and can be made into air ducts of various specifications and shapes, and can be mass-produced. The production process of non-combustible inorganic and inorganic FRP ducts is mainly based on the hand paste process, which basically does not produce noise, vibration, and environmental pollution. Easy installation, convenient and reliable flange connection, and good overall appearance after installation and molding.