Black Roofing slate: 1.Size:300* ... 8,7-9mm 4.Color:Black,Rusty,Green,grey 100% Natural Black Roofing slate from deep quarry: Regular ... available according to customer’s requirements Available color:black, green and rusty Type:Standard shapes available: ... building slate, as for: flooring slate, roofing slate, wall slate, mushroom slate, culture slate, mosaic, and pool slate, etc. CE approved black roofing ...