Registered trademark for a screw cap of the French company ALCAN Packaging Capsules, the closures of all kinds. STELVIN is an artificial word from STELCAP (registered trademark for screw caps) and VIN. It is a special aluminum cap for wine bottles. A further development is Stelvin lux +, which has no corrugation on the outside and of a conventional one cork is indistinguishable. This even led to the fact that uninitiated people started with the bottles corkscrew tried to open. The name STELVIN has become synonymous with screw cap developed, but there are also some other brands. The company ALCAN has a special closure for 2009 champagne (Sparkling wine) called MAESTRO presented, the one with the champagne house Duval-Leroy was developed.