Windproof High Rail: Ensures exceptionally strong windproof performance.

Raised Lower Rail Design: Prevents door leaf derailment and overturning due to misalignment, particularly effective in extreme conditions like typhoon climates.

Indoor Windproof Sidewall: Supports the door leaf under severe conditions, prevents rainwater backflow, and enhances overall stability.

Efficient Drainage: Lower rail features multiple drainage holes for improved drainage efficiency and to prevent rainwater accumulation.

Silicone Pile Weatherstrip: Standard on indoor sidewalls for enhanced waterproofing and noise reduction.