| http://www.w3.org/ns/prov#value | - ???Metallic surface??? and obvious variations thereof, means a surface coated or formed from a metal or a metal alloy which may also contain a metalloid. ???Metal??? refers to an element such as iron, gold, aluminum, etc., generally characterized by ductility, malleability, luster, and conductivity of heat and electricity which forms a base with the hydroxyl radical and can replace the hydrogen at
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