| 摘要 |
PURPOSE: Prefabricated parallel bars are provided to improve portability and storage by reducing the volume of the bars. CONSTITUTION: Prefabricated parallel bars includes first and second upper members (510, 520), first and second lower members (610, 620), and a connection member (700). The first and second upper members are formed in a staple shape. The first and second lower members are formed in a staple shape. The connection member connects the first and second upper members to the first and second lower members. The first and second upper members widen towards the lower part. The first and second lower members narrow towards the top. One end and the other end of the first lower member are combined with one end of the first and second upper members by the connection member. One end and the other end of the second lower member are combined with the other end of the first and second upper members by the connection member. |
