Machine table is used to detect the workpiece, crossed, welding, measuring assembly with the reference plane, the industrial production indispensable basic equipment, of which the most common use of heavy industry. Practical importance of the machine table: Tablet should be after two manual effectiveness (annealing) or natural aging 2-3 years, eliminate some white tissue within the platform, in order to reduce the internal stress of the casting. To improve the hardness and wear resistance of the surface of the cast iron work platform. Machine table size: 300mm × 300mm-3000mm × 6000mm, (according to user requirements of a variety of machine table) machine table machine table material: high-strength cast iron HT150-300, face hardness of HB170- 350 practical importance of the machine table: tablet should be after two manual effectiveness (annealing) or natural aging 2-3 years, eliminate some white tissue within the platform, in order to reduce the internal stress of the casting. Thereby increasing the hardness and wear resistance of cast iron platform work surface. Makes cast iron platform, precision cast iron plate stability, good wear resistance. Guarantee the accuracy of the machine table: flat face that uses artificial scraping scraping process. Cast iron platform were 0, 1, 2, 3 four grades.