This creation includes a bag body, be at least by a closed bottom, one from bottom peripheral edge connection upwardly extend the hollow form collar portion formed, one connection what collar portion at the upper side of hollow form beam ring portion and a what collar portion and beam ring portion between cutting portion.本創作包括有一袋體，其至少係由一封閉狀的底部、一自底部周緣連結向上延伸形成的中空狀環圍部、一連結於環圍部上方一側的中空狀束環部、以及一位於環圍部與束環部間的裁斷部。
