quite funny indeed...I'm afraid you have no idea about the world outside india and international politics(especially in China Case), and enjoy your 'good reputation' dreams...
1. in this world, money talks and business is business...every country is chasing for profit of thier own only.
2. seeing china as the potential rival and possiable future 'threat' ,the most advanced defence tech developer USA definitly won't export his tech ...and in EU case, you'd better check' The EU arms embargo on the China' and to find who is behind it and which European countries are againest it...France, UK, Italy, Germany keep trading with China under table with some cover...and China prefer to importing the Tech of the Sub -system. since these EU countries couldn't sell the whole system ,they sometime have to do so which is quite diseconomy or disadvantageous for them even in my eyes as a Chinese
2. and Isriel is some simple businessman nation, you pay and it sell without too much reserve...to be honest ,China gain a lot,but again business is business, both sides got what they want. ..then USA jump in, so we had to be low profile since early 2000s....and Indian friends, India has been the no.1 customer of Isriel defence industry...this is a good chance ,don't miss it.I thought you would gain what you want with your hard work comparing the cooperation with others
3. china also enjoyed the defence trade with those country has the unique tech and no direct conflict with China and less affected by USA..in these cases ,we bought the Tech ,sub system ...and the whole system as well which sometimes no much use to us.but why? business is busess. we know the rules.
4.the relation Russia and China is quite complicated for you: I would make it simple...friends with benifits,friends and rival .
don't keep eyes on the TOT of the whole system only. there are too much things to TOT and much ways to realize it...and we also buy small european companies owing the unique tech to gain something which more direct and commercial...the scopes seems quite narrow...
-----------------
China fight the long term war for the The establishment of New China in 1949 not begging it like some country....in the war, we learn we must have advanced weapons to save lives and the importance of self-sufficiency. it's not 'Have to" but we want and firmly plan to do so by any means...in the peace time, Defence trade is most profit business, China's defence industry has tasted the sweetness of it since 1980s .and USA is right the example here...
-----------------
in our daily life , powerless or weak person is always easier to be accepted and gain some ' good reputation'.coz they have no harm or they won't threat my business and profits even you put a knife in his hand...and if the knife is broken for some reason , he might buy another one next time..it seems also works between the nations..
-----------------
copyright violation? it reminds me the history of some nation's pharmacy industry...and the rank on some list ...very ironic indeed.
BTW, isn't the INS Chakra leased for ten years?
and buy anything? with what? the declining currency?...and you could only buy what others want to sell. it's not up to you ,and it cost a lot in the end(0.95 billion --> 2.35 billion story ) ...that's nothing to pround indeed