... and outside paving,wall decorations etc,3-Available Color: Yellow, Rusty, Black, Grey, Green, Mixed color and so ... .8-Payment term: by T/T banking transfer of L/C Welcome to contace with me. Material: ... from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional ... slate from North Wales can be found in many shades of grey, from pale to dark, and may also ...