... YZ1515x,YZ2515x,DG-1 and DG-2 four kinds of pump heads, with flow rate from 0.007-1140mL/min. Flow ... . Besides, switching knobs are designed clearly so that it is easy to operate for customers. Typical application1.accurate measurement and ration feedstock, it ... via changing the tube and material Functions and features1.applicable pump heads: YZ1515x,YZ2515x,DG-1 ,DG-22.two ways of ...