N.S.Marble in cooperation with the German firm 'HMK', provides a complete, comprehensive and interrelated series of products designed to clean various types of stains from natural stones. HMK specialty products are specifically developed for cleaning marble, granite, limestone, travertine, sandstone etc. but are also applied with the same effectiveness in mosaic, ceramic tiles, cotto and porcelain tiles. A wide range of stains such as mud, cement, adhesives, wax, oils, smoke, silicones, paints, ink, moss, algae, rust, salts, markers, coffee, wine, adhesive tapes, graffiti, can be removed easily using the appropriate products.