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   Sandstone is a natural rock,crock thousands of years ago after weather effect,the disintegra of debris, or water erosion dissolved after deposition in the stone bed. It is formed due to crustal movement received press bonded sandstone mines as well as some physical and chemical effects column.

   This kind stone has suitable hardness,wearing resisting,no radiation,uniform particles´╝îdelicate texture and rich in silicon,calcium,zinc,iron oxide and other mineral.