... origin:China 4.Color:Grey 5.Surface finishing:Polish Name:Imperial grey(di wang hui)Classification:MarblePlace of origin:NorwayColor:GreySurface ... Eased, Beveled, Bull nose,etcOgee, Cove, Dupont, French edge,laminated, non-laminated,etcGlossiness: Flatness: Form:Block,Slab,Strip,CTS,Tile,Composite ... : Thermal conductivity coefficient: Specific heat capacity: Level of radioactivity: Imperial grey marble