How accommodating China is in this area depends on how much confidential information get exposed to risk of leaking or exploited somehow. Just like western platforms when it comes to fitting out with foreign components. Taiwan's Lafayette - France was accommodating, India's MKI - Russia was accommodating, Turkey's F-35... not so much. There are reasons for this sort of spread and when it comes to JF-17 and Turkish equipment, well I don't think AVIC and PLA care because they don't depend on the JF-17, it isn't cutting edge and doesn't feature any cutting edge equipment by Chinese or NATO standards. Sorry but a small air cooled AESA and some wide HUD and MAWs isn't exactly F-35 level of technological secrecy. Giving Turkey and Pakistan full access to do as they please (since it's honestly more of a Pakistani fighter than it is Chinese) is to be expected.
Can China afford to be accommodating? It depends on what exactly it is exporting and the specifics of what foreign equipment are installed and how much information is offered up by doing so. Turkish pods and EW suite (if the latter is even true) are fine with AVIC and PLA. Why would they be against such a thing? We're not talking about a J-20 or even a J-10 here. When it comes to AZM, I suspect AVIC will take issue with cooperating and revealing sensitive information especially if PLA is a customer. If that happens, I doubt very much Pakistan will even be offered a J-35. Any cooperation between China and Turkey on this level of defence should not be compared with economic or lower level defence partnerships.
Can China afford to be accommodating? It depends on what exactly it is exporting and the specifics of what foreign equipment are installed and how much information is offered up by doing so. Turkish pods and EW suite (if the latter is even true) are fine with AVIC and PLA. Why would they be against such a thing? We're not talking about a J-20 or even a J-10 here. When it comes to AZM, I suspect AVIC will take issue with cooperating and revealing sensitive information especially if PLA is a customer. If that happens, I doubt very much Pakistan will even be offered a J-35. Any cooperation between China and Turkey on this level of defence should not be compared with economic or lower level defence partnerships.