From Ground to Facade: Can Cleaning Robots' 'New Dimension' Sustain the Next Golden Decade?

Last week, while I was debugging factor models in my office at Shenzhen Bay, the glass curtain wall outside showed obvious smudges under the sunset. A colleague joked, "Why not mount your robot vacuum on the window and give it a try?" Behind this joke lies a real industry anxiety: the penetration rate of floor-cleaning robots is nearing its ceiling, forcing manufacturers to seek the next growth dimension.