https://www.bbc.com/news/world-asia-china-49891769
No longer Russian made, but self-made. With friendly help by Western technology-transferring "partners". How idiotic the West was there when even volunteering in this role.
Many observers and analysts these days say the pace at which the Chinese modernise and comes to power, is breathtaking and unprecedented in history. And they boost not just quality or just quantity -
they boost both, especially navy and submarines. Where as in Europe, quality goes at the cost of quantity. Add to this the quckly weaving of an international network of military and logistic supply bases that could help military out of area operations.