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API 11B Sinker Bars
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Sinker barSteel Sinker RodThe steel sinker rod is heavier than the conventional rod. It is used at the bottom of the sucker rod string to keep the rod string under tension and to reduce crooks of the sucker rod string during downward travel. ● Specifications of Sinker RodSize in (mm)Rod thread size in (mm)Length m (ft)1-1/4 (31.75)5/8(15.9)SR,Website:http://www.petroleum-machinery-china.com,3/4(19.1)PR7.62 (25)9.14 (30)6 (19.7)8 (26.2）1-3/8 (34.93)5/8(15.9)SR,3/4(19.1)PR1-1/2 (38.1)3/4(19.1)SR,7/8(22.2)PR1-5/8 (41.28)7/8(22.2)SR1-3/4 (44.45)7/8(22.2)SR
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