Model Number |
API SPEC 11B |
According to API SPEC 11B, polished rod, sinker bars, Pony rods, Centralizers and Couplings of all specification are available.
Conventional sucker rod, D-Grade, Anti-Corrosion; Ultra Hi-strength Sucker rod, HY Type; Hollow Sucker rod, the sizes of 5/8, 3/4, 7/8, 1 inch, and the grades of K, D, KD, etc...
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