... 1. for chemical liquid, oil, heavy visocosity liquid, PU liquid,paint 2. 1:1, 3:1, 5:1 etc ... pump 1. for chemical liquid, oil, heavy visocosity liquid, PU liquid,paint 2. 1:1, 3:1, 5:1 ... for chemical liquid, oil, heavy visocosity liquid, PU liquid,paintin paint, oil, PU spraying etc, widely used in paint, oil ... , PU spraying, thermal insulating layer making etc* ratio: 5:1 ...