. . . "Other than these web members, there can be also illustrated heat-resistant sheets made of resins such as polyimide, polyamide, polyethyleneterephthalate, epoxy resins, etc. or other sheets made of compositions of said resins and glass fiber, carbon fiber, boron fiber, metal fiber, etc., which were respectively applied with a conductive film of a metal, alloy or transparent conductive oxide film su" .