Is there a difference in quality (material, build quality) between the various famous yellow Korean ramen pot brands?

I was hoping one of you who live or have visited Korea could answer that. From my understanding, the pot costs a few bucks in Korea. However, are the original ones (in Korea) manufactured in China or locally in Korea? Does it make a difference? I see generic(?) Chinese brands on Amazon (like AHIER, which seems to be the most popular), but there are also some that claim to be made in Korea (like 'Xenoz').

Thanks!