... G3576 is its code in Unified catalogue for natural stone of China . So it's classify as a ... .06%Porosity:0.12%Polish degree100Radiation Intensity Grade A stone quarry No water , No oil absorption ,neither be ... of the 10 candidate stones for “Chinese Famous National Stone” ,Jade ingredients , non-renewable ,one of the most famous ... ,stair , railing ,Irregular products and etc. Hua'an Jade stone quarry