... *600 2.Thickness:5-7,6-8,7-9mm 4.Color:Black,Rusty,Green,grey 100% Natural Black Roofing slate from deep quarry: Regular ... /thicknesses are available according to customer’s requirements Available color:black, green and rusty Type:Standard shapes available: square, rectangle, triangle ... slate, culture slate, mosaic, and pool slate, etc. CE approved black roofing slate