we are manufacturer of marble veneer in China. Welcome to contact us for more information. Features: 1) Thickness: 12mm (marble face + porcelain backing, glass backing, alumunium honeycomb backing and so on) 2) Conventional sizes: 400 x 400mm, 600 x 600mm, 800 x 800mm 3) Color: many colors for your choice we can produce according to customers' requirements. marble composite panel