| 摘要 |
A light section steel in accordance with the present invention includes a front part; a pair of side parts which is vertically extended from both ends of the front part and has a concave curve section formed in the center; and a pair of rear parts which faces the front part by being vertically extended from the end of the side parts and has an insertion gap formed by an end curved inward. Therefore, the light section steel remarkably reduces construction periods, costs, and safety accidents and obtains convenience in construction by allowing a user to easily assemble a frame structure with a connection member such as a bolt and a nut without welding. |
