... energy-saving and environmental protection floating beam pumping unit. oil beam pumping unitThe beam pumping unit has a better balance ... the horizontal well ,slop mine and ropy crude oil which are hard to exploit in normal working condition ,you can ... -64-48302.81.26,9,124.05.2CYJ3-1.5-4.5HY40-64-60304.51.59,144.55.5CYJ5 ... ,9,12117.0CYJ10-3-37HY320-213-120100373.0,2.5,2.16,9,123018.0CYJ12-4.8-73HF640-256 ...