| 摘要 |
A plastic neck for hot filled bottles comprising on the outside wall a two-start thread (2), a seal-ring (3) placed near an end of the thread, and a circular elevation (4) placed under, the seal-ring (3), having an essentially square shape with sides of dimension included between 0.5mm and 1mm and a radius (R3) included between 0.4mm and 0.15mm. |
