made of relatively stiff metallic materials, e.g. crown caps

Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper > Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices > Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts > made of relatively-stiff metallic materials, e.g. crown caps

Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper (clamping or other pressure-applying devices for securing or retaining closure members B65D45/00) > Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices > Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts > made of relatively stiff metallic materials, e.g. crown caps