Опубликовано в "Бизнес, Бизнес", язык - English. 6 страниц.
Steel utility poles are the utility poles make from steel, and are a column or post used to support overhead power lines and various other public utilities. Utility poles are commonly used to carry two types of electric power lines: distribution lines and sub-transmission lines. Distribution lines carry power from local substations to customers. Еще
