Armand I wish you would stop using numbers you pull out of thin air. Do some research first. The entire European union exported only 112 billion dollars worth of products to China in 2009.
While France is a important trade partner to China it is not even in the top ten as trade partners being less than even Malaysia.
The 7 billion dollars a year deficit is also dwarfed by the 183 billion a year surplus China receives.
Everything you just mentioned states Chinese trade isn't very important to France or Europe. France exports short of €400 billion, China only accounts for €12b of that. For the EU...
* EU goods exports to China 2009: €81.7 billion
* EU goods imports from China 2009:
€214.7 billion
Take that hit with EU sanctions and Chinese export engine collapses. EU can survive just fine without cheap sneakers, toys and low-end electronics by buying elsewhere... like Vietnam, India, Malaysia, Taiwan. There is no substitute for the European consumer.
The entire Three Gorges Dam cost 26 billion dollars which mostly went to construction.( where you got 100 billion dollars from I really don't know) France is not the only country that makes large generators and many other countries would have jumped at the opportunity to make money. That you even brought up the point is moot as the Dam already runs at full capacity and has all generators already installed. How exactly will France force China to change generators?
$100 billion is an estimate of what it would cost to replace everything I mentioned wholesale. The several hundred billion in economic damage I mentioned was what it would cost Chinese airlines, shipping, transport, and power generation in productivity lost for the time it takes to replace it. If Alstom is sanctioned from business with China, technicians go home, parts do not get delivered and turbines break down. China has no way to fix without replacement.
Redesigning airliners and helicopters is not cheap but China certainly has money to do so. Case in point is the AC 313. China makes the Helicopter and America supplies the engines so France is not in the loop. If France does not supply engines then America, Russia, Ukraine, and etc would.
France already collected the tens of billions in engines and licenses it sold as well as billions in support contracts. China has to spend billions for redesign and tens of billions for engines all over again and hundreds of billions in lost economic activity. Is it worth it to cross France? I think not...
Please stop over hyping Frances importance to China. France is important but not irreplaceable for China.
Please stop over-hyping China's importance to France. We didn't dump ass loads of FDI into China like Germany, UK, or even Italy. We played it smart by sticking with strategic industries that are critical to economic activity. No one cares if a German toy-factory packs up... but when you make the nuclear power plants, enriched uranium, hydro generators, HSR engines, ship engines, plane engines, helicopter engines that keep the Chinese economy running... you become too costly to be rid of.
Unless you can back your claims with reliable sources instead of your own wish full thinking then your arguments will be faulted to begin with. Making up wildly hyperbolic numbers decreases your validity and is also a bad habit.
I already backed my claims from the manufacturer websites, we build the shit that keeps China running. Get over it.