With Boeing, there are no British wings that I am aware of...
For Airbus,
Broughton is home to the headquarters of the Wing Centre of Excellence. Located in North Wales, the plant is responsible for sub-assembly and manufacturing of large components and wing final assembly for the entire Airbus family. In addition, it carries out large component machining and treatment of components greater than 18 metres in size, including wing skins and stringer sections. More than 5,000 people are employed at the site. Activities include wing skin milling, stringer manufacture, full wing equipping and wing box assembly.
Airbus Centres of Excellence*| Airbus, a leading aircraft manufacturer
Anyone can build a tube, the wings and the wingbox are the secret sauce....
I would note that quite a bit of A350 wing design is done in the US, which given the 787, wonder if the 350 will be worked in AL...
You are correct about Alabama, except I am not sure about the "A".
hahaha Both Airbus and AL begin with "A"