Filament winding FRP technology pipeline mainly used for irrigation, sewage, oil, chemicals, power, metallurgy, medicine, etc., with a light weight, high strength, corrosion resistance, installation, and easy maintenance. The product has been successfully applied throughout the country. [Features] 1, has excellent physical properties, the proportion of glass fiber reinforced plastic pipe is 1.8-2.1, which is about 1/4 of steel, high-strength steel, cast iron and plastic, weight in glass pipe is generally not more than the same size steel pipe 1 / 3, excellent physical and mechanical properties, in addition, the glass tube steel roughly expansion coefficient, thermal conductivity is only 0.5% of steel, which is a good thermal and electrical insulator. 2, chemical resistant, long life, suitable for handling different media of various acids, bases, salts and organic solvents. 3, the hydraulic characteristics of excellent hydraulic properties is an important feature of the glass tube. Hydraulic fluid excellent characteristics mean little head loss, you can use a smaller diameter or smaller power pump, thereby reducing the initial investment pipeline project to save energy and reduce operating costs. Glass steel surface is quite smooth, surface roughness is generally desirable rate 0.0084, almost can be considered "smooth water pipe", in operation, the inner surface of the steel pipe, cast iron pipes, cement pipes, etc., often localized corrosion, becoming increasingly roughened while fiberglass has maintained a surface smooth state newborn tube. 4, installation, low maintenance costs, in general, glass pipe does not need preservatives; insulation layer can be thinned, or even do another heat treatment; pipeline relatively light, small tonnage of lifting equipment, small power consumption, glass pipe length ratio of cement cast iron pipe and pipe length, fittings reduced, which will reduce installation and maintenance costs, which has been proved by many domestic and foreign engineering practice. 5, design flexibility, short cycle modifications. FRP is impregnated with resin matrix fiber-reinforced material, in accordance with the specific process conditions is wound onto the mandrel layer by layer and made of a suitable curing, the wall is a layered structure, by changing or using different resin systems enhanced material to adjust the physical and chemical properties of the glass tube, to accommodate different media and working conditions made different pressure levels or has some special properties of the glass tube. Modified cycle is short, is a fiber wound composite notable feature of isotropic metal pipe can not be compared. [Application] * chemical medium pressure pipe duct * * on the ground of various kinds of tubes of small hydropower stations, power plants, water circulation * sewerage and potable water mains pipes * pipe and distributing pipe * Crude oil injection pipes and heat duct * pipes, the water delivery pipe * agricultural irrigation pipe * hot water delivery pipe