首页>
外国专利>
New process for closing a vacuum of packs or metal buckets cylindrical or slightly conical and the same is not provided for this purpose, provided that these boxes or buckets are perfectly sealed and in any way.
New process for closing a vacuum of packs or metal buckets cylindrical or slightly conical and the same is not provided for this purpose, provided that these boxes or buckets are perfectly sealed and in any way.
