The material of external corner trim are PVC, aluminum alloy and stainless steel. The bottom plate has non-slip teeth or hole-like pattern, convenient for wall and tile full combination, fan-shaped arc surface edge of the limited bevel, used to limit the installation of tile or stone location. According to the ceramic tile thickness, the external corner trim divides into two kinds of specifications, the big external corner trim and the small external corner trim, respectively adapts to the 10mm and the 8m after the ceramic tile, the length is always 2.5 meters. external corner trim is widely used because of simple installation, low cost, effective protection of ceramic tile and reducing the collision hazard caused by 90 degree convex angle.

The material or color of Wall and ceiling is not the same, there will be a clear line of intersection, external corner trim is to cover up the boundary used, and according to different styles of indoor choice of wood or gypsum line, but also played a decorative role.