Conventional API C pump units with walking beams, balanced by cranks, are among the most common and most widely used power units in rod production on oil fields.Products comply with Specifications of Pumping Units (API Spec 11E) and other related standards, and have acquired the authorization to use Official API Monogram. Conventional light API B pump units, balanced by walking beams, are among the most common and most widely used power units in rod production on oil fields. Products comply with Specifications of Pumping Units (API Spec 11E) and other related standards, and have acquired the authorization to use Official API Monogram.
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