prov:value
| - As the electroconductive, a metal or semiconductor element such as Zn, Ti, Au, Ag, Fe, Sn, Cu, In, etc., or an oxide semiconductor such as SnO2, In2 O3, ZnO, TiO, NiO, WO, V2 O5, etc. which can give a surface resistivity of 102 to 106 ??/??? stably is preferably used either singly or as a composite material of two or more kinds.
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