The cylinder head generally adopts cast iron or alloy cast iron, thermal
conductivity Aluminum Alloy good, is conducive to improve the compression
ratio. and it is part of the combustion chamber, a great impact on
the work of the engine combustion chamber shape, the combustion of gasoline and
diesel engines, the cylinder head is composed of a portion of the combustion
chamber vary greatly. The main combustion chamber of gasoline engine in the
cylinder cover, and the combustion chamber of diesel engine piston in the main
pit at the top. we try our best suppling the best products .
During the warranty period of products, the factory promise returned and guaranteed quality.