| 摘要 |
<p>The present invention relates to a lower frame for a cage fishery, which comprises the lower frame (100), an upper frame, a mesh net, a foothold, and a buoy. The lower frame (100) comprises: an edge pipe (111) made of a metal material; a plurality of outer pipes (112) that is made of a first synthetic resin and is inserted into an outer circumferential side of the edge pipe (111) except a corner part (111a); and a sealing part (131) in the shape of′L′which is formed on the corner part (111a) in order to seal the corner part (111a) of the edge pipe (111) in which the outer pipe (112) is not inserted. According to the present invention, the lower frame has high strength, durability and can have light weight.</p> |
