Corrosion of buried pipelines in the city sewage treatment method job is mostly soil erosion, which is characterized by scattered piping, site soil conditions are extremely advanced, so the corrosion mechanism is very elaborate.nnSoil erosion and soil in the salt, drinking water, oxygen and the electrochemical corrosion of coating metal pipe composition, microbial erosion. As the city underground electrical services, cable is far more dense, stray present-day corrosion is much more major, even through the pipeline in the vicinity of the plant could be acid or alkaline media of chemical corrosion.nnBuried pipelines often go by the city roads, structures, rivers, etcetera., underneath tension intricate. In addition, the carbon metal pipe may be buried by rock backfill sand through the collision and extrusion damage.nnThe event of buried pipeline inspection and restore corrosion hurt is not effortless to make corrosion even worse. Typically final result in the restore environmental destruction. Mainly because of this, and the corrosion of buried pipeline style life of the common prerequisites in 20 ~ 30a above.nnMore facts,pls check out:Hunan good metal pipe co.,ltd