MARMOLES RAMIA, S.L. We are a company located in the capital of Castellon de la Plana (Spain), founded in the early 90s, which since its inception has been dedicated to handling and processing of natural stones widely known and used in the field of construction such as marble, granite, slate, and artificial materials such as Silestone. A good example of the variety of materials used in our company can be found in the section on materials.