... 2. make CAD drawing 3. ISO9001 system; 4. CE certificates Prefab black granite countertops in Mongolia Black, Granite veneer countertops 1 ... . 2. Most popular material for countertops: 3. Popular size for prefab countertops: Length: 96“ / 98” / 108“ / 110", Width: 25-1/2 ... "/26" Thickness: 2cm, 3cm or 2+2cm laminated Peninsular/Island prefab size: Length ( 72" , 78" , 98" , 108" ) Width ( 28", 36", 39 ...