Translations:Cappuccio/15/en
Versione del 16 dic 2018 alle 16:50 di Piccardi (discussione | contributi) (Creata pagina con "The interlocking caps which suffer, especially in the ''conical'' version, from problems of wear on the surfaces with loss of tightness, have been followed, with a trend estab...")
The interlocking caps which suffer, especially in the conical version, from problems of wear on the surfaces with loss of tightness, have been followed, with a trend established since the beginning of the '900, by the caps with screw closure (threaded cap), which are still among the most common today. A return of the interlocking caps took place in the '40s with the introduction of metal caps closed with friction on special rings (trend introduced by the Parker 51).