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What exactly is 3D printing technology?

2021-11-22 Sponsored Content Comments Off on What exactly is 3D printing technology?

Since 2009, the main patents for portable 3D printers have expired, and 3D printing has developed into an industry of its own. Therefore, 3D printers are one of the decisive products of our time. Curr...

High-speed rail is made of aluminum alloy

2021-11-21 Sponsored Content Comments Off on High-speed rail is made of aluminum alloy

Rail transit mainly includes railway passenger cars, freight trains, high-speed trains, subways, light rails, and maglev trains. What I want to focus on here is the high-speed train, which is what we ...