| http://www.w3.org/ns/prov#value | - Examples of non-metallic surfaces include surfaces made of polymers, such as composite materials, such as polymer resins having glass, polymer, or graphite fibers embedded therein. ???Non-metallic surface???, as used herein, is also meant to include any surface which has conductivity which is substantially less than the conductivity of an aluminum surface, such as a surface which has conductivity
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