| 摘要 |
A bag for preserving organic liquids, more particularly human blood, is formed by high-frequency welding of sheets of a composite film of polyvinyl chloride (2) and polyolefin (3), the polyolefinic layer (3) being towards the inside of the bag (1). Tubes (5) for the inlet and outlet of the liquid to be preserved are provided at the top (6) of the bag (1). <IMAGE> |
