Layered products comprising {a layer of} natural or synthetic rubber comprising rubber as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material } of synthetic resin
Layered products comprising {a layer of} natural or synthetic rubber comprising rubber as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material } of synthetic resin