US standard 20L beer keg stackable type, with spears

20L US beer kegs stackable type, with spears Quick Details Material: stainless Steel 304 Usage: Beer Type: Barrel Model Number: US sixth barrel process: argon-arc welding application: draft beer,wine, soda, cider, mead category: beer container, beer package, brewing equipment Neck: twice welding color: miky white surface: acid-pickling and passivation Item capacity Height External diameter Standard thickness material US 1/6 barrel 19.5L 590MM 233mm 1.8/1.2/1.8mm