| 摘要 |
PURPOSE:To obtain a sealer sealing evenly and completely even with a small pressure and further with a low cost for design, fabrication and maintenance. CONSTITUTION:This sealer is provided with rotating means 121, 122 to rotate one or both of sealers so that the contact part of a couple of sealers 101, 102 in which a chamber is equipped at least one of engaging faces 106, 107 and the two engaging faces are, transferred from the one end side of the sealer to the other end side. |
