The difference between FRP sand pipe and steel pipe. The glass fiber reinforced plastic sand pipe is a new type of composite material made of resin as the matrix material, glass fiber and its products as the reinforcing material, and quartz sand as the filling material. With its excellent corrosion resistance, hydraulic characteristics, lightweight and high strength, large conveying flow, convenient installation, short construction period, and low comprehensive investment, it has become the choice of the chemical industry, drainage engineering, and pipeline engineering.

Steel pipe is used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers. It is also an economical steel. Using steel pipes to manufacture building structure grids, pillars, and mechanical supports can reduce weight, save metal by 20-40%, and realize factory mechanized construction. The use of steel pipes to manufacture highway bridges not only saves steel, simplifies construction, but also greatly reduces the area of the protective layer and saves investment and maintenance costs.