basalt balck stone slate 1. own factory and quarry 2. slate stone walling 3.various surface finishing basalt balck stone slateavailable standard sizes: 300*300mm/400*400mm/400*600mm/300*600mm/600*600mm, or as requestedavailable thickness: 8-12mm/10-15mm/15-20mm/9-11mm/10-12mm/14-16mmavailable colors: black, green, yellow, pink, rusty, etcavailable finish for surface: natural, calibrate, honedslate stone in different colors for walling and roofing

basalt black stone walling slate