"Longxu Red" plate processed by the company has been detected by Stone Quality Detecting Centre of China Construction Material Office, as per technical requirement of GB9966-88?Natural Facing Stone Test Method?and JC/T204-92?96??Natural Stone Material?, performance indexes such as density ,water absorption, drying compressive strength, bending strength etc., all reach the technical standards.
    According control standard?JC518-93) in ?Classification Control standard of radioactivity of natural Stone?, "Longxu Red" is A grade stone, the range of application hasn't any limit ,it is a kind of environmental stone rarely.