For wine bottle caps—especially modern aluminum screw caps (commonly referred to as “high aluminum caps” or “BVS caps”)—the most suitable alloys are typically from the 8xxx or 3xxx series aluminum alloys.
The company's products cover 1xxx series, 3xxx series, 4xxx series, 5xxx series, 6xxx series, 7xxx series, 8xxx series of aluminum alloy products of different sizes.