| 摘要 |
Plastic beakers from tubular blanks.. GG-. And suitable for surface decoration. The narrow end of the blown breaker is folded using a matrix and cutting die with centralizing equipment, is part of the plastic strip from which the body is produced. A disc is inserted as base by snapping in two opposed, bulging zones, one on the rim of the beaker and the other on a collar on the circ. of the base. A covering of paper or aluminium, suitably decorated, is then rolled onto the beaker, after which the base is sealed by a thermal process. |
