At present, most of the cities with concrete sewer pipe material, but the UK has formal production of glass fiber reinforced concrete pipe, it is better than that of ordinary reinforced concrete pipe in strength.The United States in the 1970 s began with polymer concrete precast inspection Wells, useful also plastic sewers.

The sewer maintenance aspect, the United States since the 1950 s using drill pipe groove machine, and then promote the high pressure water washed car.For inspection Wells and Wells in accumulation of the sludge, the developed countries mainly use vacuum suction and jet pump suction car, to absorb and eliminate, also promote the sewer TV inspection technology.Urban drainage system in addition to deal with the rain, but also have to deal with wastewater.With the improvement of people environmental requirements, pure convey sewage to places far from the city, the practice of transferring pollution already out of style.Decorate, waste water drain according to the basic terrain section has a slope, slope flow directional flow, the formation of piping system, the waste water to sewage treatment plant.Gongyi city unicom pipe factory is professional manufacturer of rubber joint.Rubber joint professional for waste water drainage pipe connection, which reduce vibration and noise, good scalability, easy to use.Our factory main products are: series of rubber joint waterproof casing series expansion series expansion joint series series compensator series elastic dowel joint hanger series Duckbill valve series valve series, etc.