Through advanced filtration technology and high - quality materials, we ensure that our DPFs meet the most stringent environmental standards helping to improve air quality and protect the environment.


DOC


After the exhaust gas drives the turbine, the first step is to reach the DOC (diesel oxidation catalyst). Its function is to convert the hydrocarbons and carbon monoxide produced by the high-temperature combustion of the engine into less polluting water and carbon dioxide. But the weakness of DOC is that it cannot decompose particulate matter in exhaust gas.



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