The marble slab known as: marble slab, granite slabs, marble platform, Flat Rock, marble precision measurement platform 
 A marble slab of stone: natural stone, "Jinan Qing", also known as "green", the main mineral constituent of the granite platform of pyroxene, plagioclase, minor olivine, biotite, and trace amounts of magnetite , black color, and precise structure, granite material quality of the rock layer on the ground after millions of years of natural aging, the form is extremely stable, do not worry deformed due to the conventional temperature difference. 
 Marble platform advantages: After millions of years of aging, even texture, good stability, high strength, high hardness, under heavy load to maintain precision. Fine crystallization by the rigorous physical tests and granite platform of choice, hard texture, compressive strength of 2290-3750 kg / square cm, hardness of Ta Mok's hardness 6-7. Extremely resistant to abrasion, acid, alkali, high corrosion resistance, never rust. 
 (2) the use of granite slabs: in industrial production and laboratory measurements, especially for high-precision measurement, due to the non-metallic materials of granite, Department, no magnetic response, and no plastic deformation, leaving the cast iron plate pictogram See clumsy. 
 Precision measurement platform maintenance of marble: not afraid of acid, alkaline liquid material erosion, will not rust, do not need oiling, easy to stick dust, shelved a year later, to maintain the original accuracy of the same maintenance, easy maintenance, the use of and long life;