Shanxi black granite.Black granite 1)Our own quarry with low price 2)size:305*305,300*300... 3)Welcome to our facotory ! Shanxi black granite.Black graniteTile common size 305*305*10, 600*600*18,,300*600*18,etcSlab common size600*300*15,600*200*15,600*300*30,600*200*30,1150*600*30,etc1800*600*20,1800*600*30,1800*600*40, 1000*500*30,500*500*30,etcThickness tolerence 1cm:±0.5mm 1.8cm±1mm 2cm:±1mm ...