Key for opening of canning beverages by pulling, has monoblock body of fabricated plastic or metal material, which has circular area equipped with milled perforation and emerging pronunciation

摘要

The key has a monoblock body of fabricated plastic or metal material, which has a circular area equipped with milled perforation, emerging pronunciation that derives an inner hollow rectangular area. The areas provide a solid zone in an outer end of an opening for the introduction of a traction ring on the tongue.