FRP duct is a kind of product made of non-metal composite material. It is mainly made of machine-controlled winding by resin and glass fiber and adding high-quality quartz sand. It has the properties of FRP and is corrosion resistant. It is widely used in petroleum, chemical, environmental protection, drainage, agricultural irrigation and other industries due to its high strength, long life and easy installation. FRP duct is a lightweight, high-strength, corrosion-resistant non-metallic pipe. It is based on the resin matrix-based glass fiber wound on the rotating mandrel layer by layer according to the process requirements, and the quartz sand is evenly laid as a sand layer between the fibers. The pipe wall structure is reasonable and advanced, and the role of the material can be fully exerted. Under the premise of satisfying the use strength, the steel degree is improved, and the stability and reliability of the product are ensured. FRP sand has excellent corrosion resistance, light weight and high strength, no scaling, strong shock resistance, long service life compared with ordinary steel pipes, low overall cost, quick installation, safety and reliability, etc., and is accepted by the majority of users.