Characteristics of magnetic liner: 1, Per ton of ore consumption decreased 0.06 kg ball, festival ball rate is 10.17%. 2, Grinding mineral particle is-0.074mm, accounting for about 70% of the grain size, an increase of 1.68 percentage points higher than other liner-0.074mm fine grade levels. 3, The weight of the magnetic liner is only 60% of manganese steel liner, reduce mill load, saving 7.14%; increase the volume and improve the mill operating rate of 1% -5%. 4, The service life of the lining board is 6 to 10 years, 6 to 10 times of high manganese steel liner. Advanced technology: Using computer simulation design, LFC, metal type, sand and other advanced technology and high-temperature quenching. First-class quality assurance measures: We built a corporate quality control center, with all kinds of physical and chemical testing equipment, can be detected in the whole production process to ensure product quality.