| 摘要 |
<p>A bag which facilitates and ensures injection and discharge of a liquid or the like thereinto and therefrom. A flat bag formed of both front and rear sheets comprises a bag body, and an injection and discharge port continuous from the bag body to extend in a plane, in which the bag body is positioned, and opened at its tip end. The injection and dischage port is small in width as compared with the bag body, and shoulders are formed in regions extending from the bag body to the injection and discharge port.</p> |
