I think.... And I could be completely wrong here... it's something to do with electrostatically fusing fibers to a panel. They did it on wheeler dealers to some strange looking American car.
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https://en.m.wikipedia.org/wiki/Flocking_(texture)
Sent from my LG G4 using Tapatalk
Sent from my LG G4 using Tapatalk
https://en.m.wikipedia.org/wiki/Flocking_(texture)
Sent from my LG G4 using Tapatalk