... certificate 4.pass main ASTM tests 5.ISO9001 1. Ingredient of ENRICH quartz stone: about 93 ... for quartz stone products: 1)- quartz stone countertops: 96" x 26", 96" x 25-1/2" , in thickness ... x 140cm, 305 x 140cm(120" x 55"), 244 x 76cm, in thickness: 1.5cm, 2cm, 3cm ; 4)- quartz stone tiles: 60 x 60 x 1 ... .5cm or 2cm ; Custom-made sizes are available. 3. Our advantage in quartz stone products: 1 ...