Marble flat foot characteristics and advantages: 
 1, the rock by a long-term natural aging, organizational structure is even a very small expansion coefficient, internal stress completely disappeared, and no deformation, so the accuracy is high. 
 2, good rigidity, high hardness, wear resistant. 
 3, not afraid of acid, alkaline liquid material erosion, and will not rust, do not need oiling, easy to stick dust, maintenance, easy maintenance, long service life. 
 4, no scratches, not a constant temperature to prevent temperature measurement accuracy can be maintained at room temperature. 
 5, magnetization measurements can move smoothly, Zhise sense, free from damp impact, good flatness. 
 Marble flat foot characteristics and advantages: 
 1, the rock by a long-term natural aging, organizational structure is even a very small expansion coefficient, internal stress completely disappeared, and no deformation, so the accuracy is high. 
 2, good rigidity, high hardness, wear resistant. 
 3, not afraid of acid, alkaline liquid material erosion, and will not rust, do not need oiling, easy to stick dust, maintenance, easy maintenance, long service life. 
 4, no scratches, not a constant temperature to prevent temperature measurement accuracy can be maintained at room temperature. 
 5, magnetization measurements can move smoothly, Zhise sense, free from damp impact, good flatness