Industry
Switchboards, Electrical equipment. Nuclear equipment, Electrical, Electronics & Optical, Transformers and auto-transformers, by use, Transformers and auto-transformers, Transformers and auto-transformers, over 1 kVA, Switchboards, panel and pillar, Cabinets or frames, electric power transmission and distribution, Transformers, toroidal core, Transformers, radio frequency (RF)