Beer Cooler
		Apply to 70L keg, 1/3HP compressor power, 200L output
per hour, 25 meter each enter tube.
		Classified according to shape: cooler with long leg
and wheel, black cooler with short leg, cooler for tanks, household type cooler
with door.
		Classified according to size : 40L, 70L, 100L
		According to the kind of beverage: 1 tube, 2 tubes, 3
tubes, 4 tubes, 6 tubes…..