... combined effciency,It is an ideal and advanced surface pump ,3.pumping unitDouble horse head pumping unit is developed on the ... .5CYJ5-1.8-13HY114-107-7250131.86,9,12117.0CYJ10-3-37HY320-213-120100373.0,2.5,2.16,9,123018 ... .0CYJ12-4.8-73HF640-256-192120734.8,4.2,3.65,7,94529.0CYJ14-4.8-73HF640-305-192140734.8 ...