Translations:Corpo/6/en
In addition to differentiating itself for the various forms adopted by the producers, the barrel has also undergone the evolution in the use of the materials used in the construction of the fountain pens, of which it constitutes the largest component. At the dawn of the fountain pens it was mainly made of hard rubber like the rest of the pen, a material that guaranteed, having to serve as an ink tank, the necessary chemical resistance.