During the 1850s, due to the manufacturing processes being developed in Britain by Sir Henry Bessemer, it became possible – in theory – to produce sufficient steel of adequate quality to make it an ...

Heavy Steel Frames: Fabricated from hot-rolled steel sections, heavy steel frames are significantly thicker—often above 6 mm—and heavier. They are used in buildings where high load-bearing capacity is ...

For over a century, wood pole structures have been used to support overhead powerlines. Over time, as the utility industry expanded, the basic wood pole structure has evolved, but regardless of ...