This sub-class includes the manufacture, repair and/or maintenance of current-carrying and/or non-current-carrying wiring devices for electrical circuits regardless of material. This sub-class includes the manufacture, repair and/or maintenance of the following: •bus bars, electrical conductors (except switchgear-type) •GFCI (ground fault circuit interrupters) •lamp holders •lightning arrestors and/or coils •switches for electrical wiring (e.g., pressure, pushbutton, snap, tumbler switches) •electrical outlets and/or sockets •boxes for electrical wiring (e.g., junction, outlet, switch boxes) •electrical conduit and/or fitting •transmission pole and/or line hardware •plastic non-current-carrying wiring devices including plastic junction boxes, face plates, and/or similar, plastic pole line fittings