What is the bright and unsharpable steel doors?
A fixed glass that can not be opened, and a fixed part is separated from the door.
Steel doors are bright: generally refers to the door with the door frame, the box on the upper part of the total door with a quarter of the door with a fixed glass, can not open, fixed part of the door and the door to distinguish, known as bright, on the contrary For no bright, do not know whether the statement is clear.
