U-Shaped square-groove belong to widen dyadic space and it's altitude is consistent, neatly side by side. The Arrangement that facilities beneficial to being ventilated,drenches with fighting fire gushing ventilated. And may coordinate with ridges system to use. U-Shaped square-groove connect solid,each document but many times linking up pretends to dismantle, easily various lamp and device match each other, conveniently maintain the equipment.At the same time,its' color and luster is homogeneously consistent ,put into use indoor can invariable in 10 years.

Used in corridors, bars, libraries, clubs, squares, exhibition, subway, airports, shopping malls, office building and other places.