... for a balcony, terrace, flat roof, etc 3. Surface Finished: Polished, honed, flamed, flamed and brushed, bush hammered, etc. 4. ... visit our website to see more. 6. Quality Control: ----1). Polished degree: 90 degree or up. ----2). Thickness tolerance: + / - 0.5mm ... , sandstone, and celestite. Our products include all kinds of kerbstones, slab, tiles, walls, sculptures and other engineering stones.