Go to this webpage:
https://armstrade.sipri.org/armstrade/page/trade_register.php
Have a look at what pops up when you search with the settings of Russia for the source and China the destination and the time period 2000 to 2022...
Supplier Russia
Recipient China
Ordered Description Year order year delivery comments
4 MR-750 Fregat air search radar (2001) 2004-2007 For 2 Type-051C (Luzhou) and 2 Type-052B (Luyang-1) destroyers
produced in China; probably produ ced (possibly without license) in China
32 AK-176 76mm naval gun (2004) 2008-2019 For 32 Type-054A (Jiangkai-2) frigates produced in China; produced under licence as
H/PJ-26
32 Mineral sea search radar (2004) 2008-2019 For 32 Type-054A (Jiangkai-2) frigates produced in China;
probably produced (possibly without license) in China
8 AK-176 76mm naval gun (2005) 2007-2020 Chinese-produced H/PJ-26 version for 8 Type-071 (Yuzhao) AALS produced in
China
72 AK-176 76mm naval gun (2010) 2013-2021 Chinese-produced H/PJ-26 version for 72 Type-056 (Jiangdao) frigates produced in
China
Etc etc...
2 MGK-335MS sonar systems, 136 MR-90 fire control systems, plus lots of naval missiles and torpedos.... as well as ships and subs.
The original Type 052 destroyer was made before the 1989 sanctions. It used US gas turbines. It had European electronics, sensors, and weapon systems. The Type 052B was made after the sanctions so it used Ukrainian gas turbines, and licensed German diesels
So it used foreign stuff before the sanctions and foreign stuff after the sanctions.... till they could copy them...
Not saying they are not clever, but I am saying no one can develop a brand new navy using their own technology in a decade.
That's it, I agree with everything and repeat what I really think; I'm not glorifying China, I'm glorifying (realistically looking at) Chinese efficiency. That is the key word - efficiency.
And that is what I am talking about, their results appear very impressive, but to call it efficient you need to know what resources and money and people they put into all this... if it cost 10 trillion dollars then it really isn't efficient at all... if they damaged their economy and stunted their own potential growth to make this stuff then it isn't efficient either... if they never use the ships and subs they have created and they end up rusting in port because no one knows how to use them properly then it is not efficient use of resources either.
It is amusing you think Russia is rubbish and China is perfect, almost like you live in the special world of the teenager where what you like is the best in the world and everything else sucks.