1)rusty flooring slate 2)National standard. 3)Quality guaranteed. 4)Competitive price. 5)Packaging nicely and neatly rusty slate,flooring slate,wall slate,1)european standard B.S ... )water absorption 0.2% 4)high quality control. 5)color rusty,black,green,yellowslate, is natural material,color is stable,10 ... can make tile,mushroom,culture stone,billards etc... for wall,flooring