rough granite blocks importers 1)Asia Champion in 3D mosaic 2)Since 1996 ... , ISO9001 3)Quarry Owner 4)Famous brand, over 20 Product InfromationHua'an Jade ... %Porosity:0.12%Polish degree100Radiation Intensity Grade A rough granite blocks importers No water , No oil absorption ... ,stair , railing ,Irregular products and etc. Hua'an Jade rough granite blocks importers