1.Stone Manufacturer Since 1996 2.Thickness Tolerance:+/-0.5mm 3.CE&SGS Verified Double Black Granite Tombstone Surface finishing: 6 faces polished; 5 faces polished or as per request.Edge finishing: flat, ogee, or as per drawingSpecial treatment: Colorful Pattern, Sculpture, Sandblasted,shadow carving,3D relief,etcPolishing degree: 90 and up.Quality control: +/-1mm, free from spot and water line ...