Vertical Roller Mill Wear Parts Roller Tyre High Chromium Content Roller Shell . Model: LM, CLUM, ZGM, . Material: High chromium cast iron . Appliion: Widely used in metallurgy, electric power, cement, chemical, ceramics, nonmetallic minerals, power plant desulfurization, water slag, slag, slag, coal, cement clinker, glass, quartz, limestone and other industries for .