The primary distinction between ERW steel pipe and seamless steel pipe is the presence of a weld seam, which is critical to the quality of ERW steel pipe. Due to the unrelenting efforts of many years in the world, particularly in the United States, the production technology and equipment of modern E
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The main advantages of plastic pipes(1) Good chemical stability, not affected by environmental factors and medium components in the pipeline, and good corrosion resistance.(2)Small thermal conductivity, low thermal conductivity, thermal insulation, and good energy-saving effect.(3)The hy
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Steel billet prices jumped up and down in three days, and the judges couldn't help but wonder what the "demon billet" really wanted. The author will examine the following factors.First, the billet price's "up and down" movement in a short period of time is intended to sti
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According to National Bureau of Statistics data, from January to September 2022, the ferrous metal smelting and rolling processing industry achieved an operating income of 6,617.77 billion yuan, a 9.1% decrease year on year; operating costs were 6,338.64 billion yuan, a 4.6% decrease year on year; a
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