A cylinder liner ( or cylinder sleeve) is a cylindrical part to be fitted into an engine block to form a cylinder. It is one of the most important functional parts to make up the interior of an engine. Our products after quenching technology for the surface and heat treating, the forged liner is with high intensity, strong tenacity and wearability. Over the years, our product quality in a leading position, and enjoy good reputation in the majority of customers at the same industry.