... *103.Tolerance1cm: +/-0.5mm; 1.8cm: +/-1mm; 2cm: +/-2mm;4.Material:black granite, G654 granite,China black granite, Shanxi black granite ... ). We supply and manufacture tombstone, countertop, headstone, monument.4). Usage: constraction material for cemeteray floring, vanity top usded by our granite.5 ...