You are taking this too literally...
Not literally, just concrete, because you where deliberately trying to be vague, to spin your bigoted opinions into Wiki "facts" that are simply not there as so often when you are trying to abuse credibility of independent sources and citations to pull off your twisted piss stories about China and fabricated anecdotes again, even when China was actually only responsible for a fraction of Iraqi diverse armory through exporting old junk, regardless of the fact it ended up technically as the main arms supplier by mere exclusion of others for reasons unrelated to China, making the whole attempt to smear China ridiculous.
Usually, if you buy the product, in this case instruments of warfare, you get the training that goes with it, and inevitably, the ideas on how to use these instruments.
It was obvious this stretch was going to be your grasp for straws to justify your desperate spin to pin Iraqi war failure on Chinese "incompetence" or make implications on China's weapon systems based on Iraqi performance. Which leads to the following dilemma for you:
U.S. Chinese military relations in the 70s.
Only 1-2 decades earlier, since the late 60 and over the 70s, the U.S.A. supplied the Peoples Republic of China with military equipment and training to fend off the Soviets.
Which by your twisted troll logic has significant implications on today's U.S. air defence and radar technology and it might be just as bad as China during the 70s. Just as Iraqi past defences suggest significant limitations for modern Chinese air defence according to you.
Remember, China "hired" the U.S.A..