| http://www.w3.org/ns/prov#value | - Examples of suitable wear-resistant materials include the reinforcing fibers that can be used in the tube, such as carbon fiber, boron fiber, aramid fiber, glass fiber, ceramic fiber, and metallic fiber; metals, such as stainless steel and hard chrome; ceramics, such as agate, glass, silicon nitride, silicon carbide, tungsten carbide, alumina, and zirconia; composites of ceramics and metals; compo
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