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