摘要 |
<p>PROBLEM TO BE SOLVED: To solve problems, for example, in conventional crow nets, crows easily turn the net, so crows scattered dusts contained in the net often, so the nets could not perform the roll sufficiently, and to provide a crow net that crows cannot scatter dusts is provided.SOLUTION: By installing a frame body having weight on an outside of the crow net, crows cannot open the net. In addition, the frame body is folded in half, so putting in and out of dusts are also easily performed.</p> |