DJY-242B:2 products, 4 nozzles, 4 displays, 2 motors, 2 pumps, 2 flow meters DJY-242B:2 products, 4 nozzles, 4 displays, 2 motors, 2 pumps, 2 flow meters( ... or separate pump, smaller shape and convenient maintenance.2.Adopting painting-side for common type and stainless steel ... jamming. 9.Be capable of connecting with central computer in gas station. 10.Conveniently combining and extending function. ...