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Coupler for connecting the plunger downhole sucker rod pump rod string
Coupler for connecting the plunger downhole sucker rod pump rod string
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机译:用于连接柱塞井下抽油杆泵杆柱的连接器
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摘要
Coupler for connecting the plunger of the downhole sucker rod pump rod string comprising a sleeve connected to the plunger with formed in its upper part groove, a collet with petals and a shank with a conical part, connected to coupling with the rod string, wherein there toothed projections on the ends of the petals collet directed to the center and taper shank portion configured corrugated.
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