Specifications: 1.API drilling mud pump 2.Mud pump with long stroke 3.High quality, better price 4.Good after-sales All models mud pump for drilling rig: Optimum of parameter, increased the stroke length and displacements appropriately, lowered the stroke reasonably, thus improved the service life of expendable parts.This series mud pumps are widely used in oilfields and other industrial mining enterprises for well drilling and well repairing etc. This series mud pumps are strictly manufactured according to SY5138 standard of CNPC and are tested accordingly when leave factory.