| http://www.w3.org/ns/prov#value | - The specific examples of the material can include alkali metal (such as Li, Na, and K) and fluoride or oxide thereof, alkali earth metal (such as Mg and Ca) and fluoride or oxide thereof, gold, silver, plumbum, aluminum, sodium-potassium alloy or mixture, lithium-aluminum alloy or mixture, magnesium-silver alloy or mixture, and rare earth metal such as indium and yttrium.
|
