grey granite Stairs :Suit for Interior Decoration. 1) Own Manufactory. 2) Good design & Quality. 3) Competitive Price. grey granite StairsEach type and process could be as per your required. 1) Marterial: Natural Marble or Granite. 2) Process: Polished, Honed, Sandblasted, Flamed, acid pickling, Chiseled, Bush-Hammered, Mushroom, Natural Cleft, Mechanical Chisel or other process as per your ...