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Many countries in the world today have high-speed rail, which has brought new benefits to the country and promoted the process of moving towards a modern country, but also brought convenience to people's lives. What are the distinctive features of the different countries' high-speed railways?
Traditionally, railroad fishtail plates have holes drilled in the end of the part to be connected. There are holes at the end of...
One hundred and fifty years ago, railroads were considered by the Qing Dynasty rulers as an ominous thing that destroyed feng s...
People often ask how to choose between I-beam and H-beam, which are similar in shape, in practical use. Many people who have b...
I-beam, also known as Universal Beam, is a long strip of steel with an I-shaped cross section. I-beam is divided into ordinar...
Spring steel, commonly referred to as annealed spring steel, is a so-called "universal" steel. Because of the wide range of uses...
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