... .6MpaCompressive strength 259.7Mpa.BrightnessAbove 92Polishing degreeover 100 degree.Tolerance of thinckness1cm: +/-0.5mm; 1.8cm: +/-1mm; 2cm: +/-2mm; ... on the size of borders or according to the habit of clients there in different countries. Of course, the high of kerbs can be ... 5cm, 6cm, 7cm, 8cm, 9cm, 10cm, 12cm.The headstone of these kerbset monumentscan be different size such as 60x80cm, 90x70cm ...