... -30 mm. The direct wear of the magnetic lining plate is greatly lowered, and the life of ... the same time, the life of this kind of lining plate is long, the cost is low, and ... on the market, it is indicated that the magnetic lining plate can replace manganese steel.Advantages: ·Long life, ... the mill outputcapacity;·Crushed medium is attached to the lining surface, so that the grinding condition is improved ...