The Qin Country Navy, compared to the massive Great Tang Empire Navy, could be described as miniature. Even when compared to other countries' navies, it falls far short of being powerful.
Due to the war between Shu Country and Qin Country, this navy was utterly unable to procure the Great Tang Empire's submarine technology, so the Qin Country inherited the Shu Country Navy without any submarines to use.
So what battleships does the Shu Country Navy have? Or rather, how much of a foundation did the Qin Country inherit from the Shu Country Navy?
Firstly, the number of main battleships in the Shu Country Navy is very few; it has only five old battleships. When the world navy was developing greatly, Shu Country, due to its own focus issues, didn't choose to keep up.
Shu Country, steered entirely by businessmen over the past decade, considered railway transportation between land and the Great Tang Empire as the most crucial, so they didn't invest much in the navy.