Lol.. let me ask u. Since China aviation is so reliant on US components. Why didn't US ban components export to C919 since our r/s with US is so bad?Where have you been: 16-wheeler trucks. And aircraft engines are transported by air. Its called multi-modal transport. Doesn't mean that if you have seen rail transport work in China, that for other parts of the world no option works. Nobody wakes up in the morning and needs rice and the rice has to be shipped by high speed rail. Thats not how supply chains work.
The world prospered over the last 30 years because it was interconnected. China, the west. Not because China is a set of super humans and did it all on its own
The obvious one is aviation: for 25 years China has been purchasing Boeing and Airbus airliners. The new C919 airliner has 40% of its major high-value equipment all imported. GE/Safran engines , Honeywell for avionics and so on...
China's industry is advanced and should be admired but its not at the expense of the rest of the world being stupid. Don't ask questions that have obvious answers. If Chinese sensors allow you, read more than what the Govt makes you read.
You think we really need their components? If not for facilitate FAA approval. We don't even need a single import. You are so naive and brainwashed by neocon media.
Without a single US parts, which US companies will fight for C919 FAA approval for COMAC? Tell me genuis?