Corrosion of buried pipelines in the city sewage therapy venture is predominantly soil erosion, which is characterised by scattered piping, soil problems are incredibly elaborate, so the corrosion mechanism is very intricate.nnSoil erosion and soil in the salt, drinking water, oxygen and the electrochemical corrosion of coating steel pipe composition, microbial erosion. As the city underground electrical amenities, cable is extra dense, stray recent corrosion is additional severe, even by way of the pipeline around the plant may possibly be acid or alkaline media of chemical corrosion.nnBuried pipelines frequently pass through the city streets, structures, rivers, and many others., under force complex. In addition, the carbon metal pipe may be buried by rock backfill sand for site the duration of the collision and extrusion problems.nnThe party of buried pipeline inspection and fix corrosion problems is not uncomplicated to make corrosion even worse. Usually end result in the fix environmental hurt. Since of this, and the corrosion of buried pipeline design everyday living of the typical prerequisites in 20 ~ 30a over.nnMore data,pls stop by:Hunan good steel pipe co.,ltd