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The flat piston gasoline engine, the utility
model has the advantages of small heat absorption area of diesel engine piston.
The top often have a variety of pits, the shape, position and size must be mixed
gas and diesel combustion formation and meet the requirements. The piston of a large marine low-speed diesel engine is usually a crosshead type.




The heat treatment process by normalizing and annealing, and iron pearlite are ferrite organization, has good heat resistance.
Piston alloy quenched and tempered steel has better heat resistance and
corrosion resistance. The skirt with nodular cast iron annealing
treatment, with good wear resistance.










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