主要产品：汽车、拖拉机、大马力柴油机、施工机械、重油船用柴油机用的空气、机油、燃油三大系列的滤清器、滤芯。
Main products: filters and filter elements for air engine oil and fuel filtering. used in automobiles. tractors. powerful diesel engines. construction machines. and oil tankers etc.
主要产品：汽车、拖拉机、大马力柴油机、施工机械、重油船用柴油机用的空气、机油、燃油三大系列的滤清器、滤芯。
Main products: filters and filter elements for air engine oil and fuel filtering. used in automobiles. tractors. powerful diesel engine s. construction machines. and oil tankers etc.
本文分析了燃烧重油柴油机排气阀的失效机理。
This paper analyzes the mechanism of invalidity of the exhaust valves of diesel engines using dead oil.
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