Nasu Denki-Tekko Co., Ltd. designs, manufactures, and sells electricity, communications, and transportation infrastructure materials in Japan. The company offers steel towers and structures, including transmission, telecommunications, and lighting towers, as well as steel frames, and equipment racks; overhead line materials, such as overhead wiring hardware, insulators, resin covers, NTT and CATV materials, wire rods, and antenna support poles for information and communications; and underground wire materials comprising cable support materials for tunnels and utility conduits, prefabricated manholes, concrete handhole products, iron covers, pipe materials, and utility pole removal materials. It also provides toll booth and transportation system materials, which include road information boards, signs, soundproof wall supports, electronic toll collection gantries, lighting and ventilation equipment, and railway overhead wire fittings; steel pipe, composite, and fabricated steel pipe columns; and assembled steel pipe poles for power generation, communications, and for disaster prevention. In addition, the company offers surface treatment solutions, such as highly corrosion-resistant plating, hot-dip zinc-aluminum alloy plating, hot-dip galvanization, low-gloss treatment, zinc phosphate treatment, and various types of painting; and air-heated hydrogen storage alloy system and hydrogen storage alloy tank. Further, it offers construction works comprising telecommunication tower, underground line facility, and road facility installation works, and deterioration diagnosis, as well as recycling of galvanized products. The company serves electric power, telecommunication, construction, expressway, and railway companies, as well as government agencies and ministry of land, infrastructure, transport, tourism, internal affairs and communications, and defense. Nasu Denki-Tekko Co., Ltd. was founded in 1929 and is headquartered in Shinjuku, Japan.