| 摘要 |
According to the present invention, a pipe assembly for a ceiling type x-ray imaging device includes an outer pipe having an inner surface where an LM rail is formed; an inner pipe which has an outer surface where a LM block is formed and is arrange in the inner center of the outer pipe; and middle pipes which has an inner surface where a LM rail is formed, and an outer surface where an LM block is formed, and have different diameters, and are arranged in a space between the outer pipe and the inner pipe with a concentric circle. The outer pipe, the middle pipe, and the inner pipe are connected by the combination of the LM rail and the LM block. |
