Drum flange and drum plug/bung 1. 2"&3/4" (70mm and 35mm) drum flange 2. plug for 200-liter(55 US gallons) drum/barrel 3. Material: iron/tin, zinc plated 4. Widely used in cap (lid), drum (bucket), can making, lubricant, paint manufacturing , chemical, petroleum, grain&oil and other liquid packaging industries.