| 摘要 |
The present invention relates to an angle adjustable prefabricated elbow, and more specifically, to a prefabricated elbow which is formed at various angles depending on the use thereof to change the direction of fluid flowing in a pipe and maximizes the efficiency thereof due to simplified assembly. According to one embodiment of the present invention, an inner coupling unit (22) is formed on one side around an elbow body (21) and is depressed toward the inner center of the elbow body (21). |
