| http://www.w3.org/ns/prov#value | - Such hybrid coatings can be applied to downhole components such as the tool joints and stabilizers to enhance the durability and mechanical integrity of the DLC coatings deposited on these components and to provide a ???second line of defense??? should the ultra-low friction outer layer either wear-out or delaminate, against the aggressive wear and erosive conditions of the downhole in subterranea
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