The patented ratchet planetary deceleration mechanism achieves 0.1°angle adjustment accuracy, and the titanium-aluminum composite matrix has passed the Swiss SGS 600-hour salt spray certification. The wind-resistant streamline design maintains < 25dB (A) opening and closing noise in a 12-level typhoon, and the ICU negative pressure ward-level seal makes the dust transmission rate ≤ 0.01%, giving the building respiratory system a surgical-like environment control.