air operated transfer pump for chemical liquid, oil, heavy visocosity liquid, PU liquid,paint in paint, ... oil, PU spraying etc air operated transfer pump for chemical liquid, oil, heavy visocosity liquid, PU liquid,paintin paint, oil ... , widely used in paint, oil, PU spraying, thermal insulating layer making etc* ratio: 2: 1* capacity: 26kg/min* stainless steel* liquid ...