What the heck are you talking about? What makes you think shipbuilding is "very efficient" in China? Warship manufacturing is almost certainly LESS efficient in China compared to the US, where they have been building the Arleigh Burke and other cutting edge warships for decades. Just because it's smaller doesn't mean Chinese manufacturers can make it more efficiently. The price tag for 054A is cheaper because of the smaller size, slightly cheaper materials, and domestic equipment, not because of any efficiency in Chinese warship manufacturing.what the heck are you talking about? It has all to do with shipbuilding being very efficient in China + using all domestically developed equipments -> cheap.
By the way, $250 million is meaningless without further explanation of what is actually included in that number. That's why I said the total sail-away price for the ship could actually be double that once you factor in everything else minus the crew. That's how it is for the "$1 billion" Arleigh Burke.
What does this have anything to do with what I said?well, just look at fremm class, you can put Aster 30 there. Can you do that on 054A?