... thick marble or granite sheet,Backing: 3-4mm thick polymer composite sheet2- Max Size: 800mmX1600mm3- Main Application: use for ... countertops, table etc.4- Main Advantage: This ultra-thin composite panel is very easy to install ,so it can reduce time ... Light-weight, strong, smooth flat, strong anti-concussion, resistance to fire and anti-chemical corrosion, anti-efflorescent, long-time lasting to ...