fluid transfer pump 1. for chemical liquid, oil, heavy visocosity liquid, PU liquid, ... paint 2. 1.5:1, 2:1, 5:1 etc air powered fluid tranfer pump ... ,air operated transfer pump for chemical liquid, oil, heavy visocosity liquid, PU ... tranffer, building paint spray etc.,* sprcial to heavy viscosity fluid, corresive liquid, liquid with particle ...