China High Quality Hot Sale Security Stacking High Speed Door

China High Quality Hot Sale Security Stacking High Speed Door. High Speed Operation: Open speed 0.5-1.0m/s, close speed 0.5-0.8m/s, frequency 800-1000 times/day. Customizable Options: Custom frame, color, size, and function available upon request. Robust Security Features: Infrared sensors, warning lights, anti-collision bollards, and photoelectric protection. Durable Construction: Galvanized steel frame, aluminum alloy/steel material, 1 million cycle service life. Wind and Water Resistance: Withstands 20m/s wind loads and Level 2 water resistance performance. Versatile Application: Suitable for industrial, garage, logistics, and outdoor/indoor large passages. Certified Quality: Certified by CMA, CNAS, and BV for industrial safety standards.