Granite slab discoloration shocking consumers

The national granite slabs product quality spot-check result directs to give off heat discussions, specially three model of product radionuclide limits the quantity exceeds the allowed figure, receives the numerous media and consumer's attention, some people even related the granite slab discoloration to the nuclear radiation.And what the hell is granite slab discoloration?Because the structural granite slabs are the clay, the sand and crushed stone, the granulated substance dregs or the industry waste residue and some helps materials and so on material to take shape naturally Tu Youjing the agglutination to become, in these materials includes the uranium, the thorium, the radium three kind of nucleins, particularly the radium will also emit to the human body health influential radon. Moreover the granite slab discoloration  will glaze and join the ceramic tile to increase the white zirconium indium granulated substance, although will be very also difficult after the high temperature agglutination to eliminate radionuclide. These two kind of factors fold put together, cause in the ceramic tile how many to be able to include the radionuclide.
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