Those containers have a shape and style and the place names allow me to visualise what they look like.

Nobody else knows what your country of origin status symbol words are supposed to mean, so using them to communicate has one clear motive and it isn't clarity

nah, you're just being overly reactive about things. You're not contributing to the main topic

Perhaps no one knows but once it is specified they can at least look them up if they feel inclined.

I didn't know what a Korean steel container looked like, but Google gave me clarity and now I want some.

American cheese is different from other kinds of cheese. Canadian bacon is different from other types of bacon. English muffins are different from other types of muffins.

OP isn't trying to be "fancy", they're trying to communicate. This is a weird thing to get agitated about.

What we have here ... is a failure to communicate.

(I'll see myself out)

Why even be that specific? My matter holders are made of matter.

This reminds me of a scene from the Simpsons [1]:

Homer: Hmm. I wonder why he's so eager to go to the garage?

Moe: The "garage"? Hey fellas, the "garage"! Well, ooh la di da, Mr. French Man.

Homer: Well what do you call it?

Moe: A car hole!

[1] https://www.youtube.com/watch?v=m5t9w98afJo