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Here's what Chinese train factories look like for context https://www.alamy.com/180326-shijiazhuang-march-26-2018-xinh...

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This is pretty remote context. OP's article is about subway car overhauls, that article is about building new inter-city trains.

If OP was about an Amtrak factory this would be more comparable.

None of the Amtrak rolling stock can really compare with the state-of-the-art high speed rail trainsets in that image though. Perhaps a better comparison would be, say, Siemens' facility for producing Velaro trainsets or Nippon Sharyo's Shinkansen-making factory: https://www.n-sharyo.co.jp/business/tetsudo/making/img-kouta...

The factories are really similar! Guess most factories are, but still, I figured there would be some major difference.

In fact, some of the shots of the Chinese train carridges without their aerodynamic shell look almost exactly like the subway cars. Cool convergent engineering

Well, there are only so many ways you can make a metal box with some wheels on the bottom.

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