Can you give the precise name of this rocket component is, and its role?
#ArianeGrouppic.twitter.com/UsPr0HLdPS
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Vulcain 2.1 for Ariane 6 maybe?
Vulcain 2.1?
We're going to go through them all, aren't we? 
Ok final guess, is it a baseplate of the injector head of the engine for Ariane 6. The engine most probably: Vulcain 2.1
We'll have to check when we post the answer tomorrow. 
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