1.0–1.6s: Vent modules and small parts precisely attach to the helmet shell. Clos...
1.0–1.6s: Vent modules and small parts precisely attach to the helmet shell. Close tracking shot. 1.6–2.2s: The transparent visor approaches, its hinges connect at the side pivots, and the visor closes smoothly. Front 3/4 close-up with a slow pullback. 2.2–2.8s: The peak descends and locks firmly on top of the helmet, transitioning it from the initial unassembled-peak state into the fully assem...
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