| 摘要 |
A sealing device for sealing two plastic containers together with one plastic container on top of another and having mating edges. The device including a metal tubular ring having a rectangular section, incorporating, in its bottom surface, a series of pins which are deep enough to extend through the mating edges of the container and have a circular pattern with a diameter that is within the diameter of the mating edges. The device has internally, a plurality of electrical heating elements to heat up the pins. |
