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2. List of steel producers - Wikipedia

   en.wikipedia.org/wiki/List_of_steel_producers

   The World Steel Association features a list from its members every year. Due to mergers, year-to-year figures for some producers are not comparable. Not all steel is the same. Some steel is more valuable than other steel, so the volume is not the same as turnover. Some of the world's leading steel producers include China Baowu Group and ...

3. Surya Roshni - Wikipedia

   en.wikipedia.org/wiki/Surya_Roshni

   Surya Roshni Limited (formerly Prakash Surya Roshni Limited) is an Indian multinational company headquartered in Delhi that produces fans, [4] steel, lighting, LED, [5] [6] kitchen appliances [7] and PVC pipes. Surya exports its products over 44 countries [8] and is one of the top manufacturers of LED lights in India. [9]

4. Lightning rod - Wikipedia

   en.wikipedia.org/wiki/Lightning_rod

   The first proper lightning rod was invented by Father Prokop Diviš, a Czech priest and scientist, who erected a grounded lightning rod in 1754. Diviš's design involved a vertical iron rod topped with a grounded wire, intended to attract lightning strikes and safely conduct them to the ground. [2]

5. Nucor - Wikipedia

   en.wikipedia.org/wiki/Nucor

   Molten steel transferred from furnace to ladle. Nucor Corporation is an American company based in Charlotte, North Carolina, that produces steel and related products. It is the largest steel producer in the United States and the largest recycler of scrap in North America. [1]

6. Utility pole - Wikipedia

   en.wikipedia.org/wiki/Utility_pole

   A utility pole, commonly referred to as a transmission pole, telephone pole, telecommunication pole, power pole, hydro pole, telegraph pole, or telegraph post, is a column or post used to support overhead power lines and various other public utilities, such as electrical cable, fiber optic cable, and related equipment such as transformers and ...

7. Overhead power line - Wikipedia

   en.wikipedia.org/wiki/Overhead_power_line

   Tubular steel poles are typically used in urban areas. High-voltage lines are often carried on lattice-type steel towers or pylons. For remote areas, aluminum towers may be placed by helicopters. [5] [6] Concrete poles have also been used. [2] Poles made of reinforced plastics are also available, but their high cost restricts application.