tombstone manufacturer 1.Characteristic: Density: about 3.5g/cbm-4.5g/cbm Water absorption: 0.04% Bending strength: 37.6Mpa Compressive strength: 259.7Mpa. Brightness: over 100. Polishing degree: over 100 degree. 2.Material: black granite, China black granite, Shanxi black granite, Hebei black granite, mongnlia black granite and so on. 3.The design: including simple shape, carving, sandblasted and so on. 4.Size 67*10*6 70*10*5 125*75*575*10*5 50*6*6 70*10*6 40*10*6 30*10*5 40*10*5 26*6*6 36*10*6 15*10*6 10*10*5 16*10*5 10*6*6 15*10*6 5. Tolerance 1cm: +/-0.5mm; 1.8cm: +/-1mm; 2cm: +/-2mm; 6. packing plastic film and foam inside and strong wooden crate outside. 7.Suface finishing polished,flamed, honed, and bush hannered! 8.produce progress Material→cut to size→polish→bundle→packing 9.Usage: cemetery, memorial, garden.