| http://www.w3.org/ns/prov#value | - Architectural materials such as sheets or slabs of glass, plastic, carbon, slate, marble, granite, or other natural stone or formations thereof such as terrazzo, laminates or the like may be coated as described with a transparent coating or film of synthetic diamond or diamond-like material formed in situ on a major face thereof such as a face or surface subject to erosion due to wear or weatherin
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