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Y221-115 (Y221-115BD) and Y221-150 packers are used for blocking the water layer of the oil well and testing oil for the oil wells, and they can be independently used for blocking the oil reservoir.
 31/2″EUE.59×17.5F Mid Joint |  27/8″EUE.59×17.5F Mid Joint |  31/2″EUE.59×17.5FCable protector |
 27/8″EUE.59×17.5FCable protector |  Stuffing box |  Sucker Rod Series |
 Tubing |  Pumping Unit |