‌RockySea Petro Polished RodRockySea Petro can supply polished rods which comply with intl standard. They are manufactured through many processes including the testing, straightening and forging. Polished rods are made of high quality carbon steel and alloy steeldue to customer request. Ourpolished rods are exported to the United States, Canada, Europe, Africa and Middle East, and we establish cooperative relationships with international customers all over the world.Description The polished rod is a sp

‌RockySea Petro Quick Lock Annular BOPGreatly reduce the time for replacing the ram and effectively improve work efficiency with safety.Compact structure and reduced weight means more operation room.20 years experience in designing and manufacturing QL annular BOP.The working principle and purpose of RockySea Petro QL annular blowout preventers are not fundamentally different from traditional blowout preventers, but their structure has been effectively improved. No need for large high torque bolts, convenie

‌RockySea PetroTubing PumpThe raw material of tubing pump parts should be inspected after heat treatment, the mechanical properties, chemical compositions and metallographic structures must be inspected by batch. The tubing pump parts should be inspected several times during the processing procedure.Best tubing pump manufacturer in ChinaRockySea Petro also developed the downhole pumps with various processes of boronizing, nitriding, chrome plating, tungsten plating for special well conditions.Some key point

‌RockySea Petro Spiral Drill CollarIn directional drilling, due to the large deviated well and the large contact area between the drill collar and the borehole wall, problems like sticking and jamming are more likely to happen. The spiral drill collar reduces the contact area between the drill collar and the borehole wall, so it is widely used. Spiral drill collars are not listed in intl standards, but due to its practical value, many manufacturers have produced them.Description The function of

‌RockySea Petro Downhole Pump FittingsWe establishes cooperative relationships with international customers such as Shell, GE, Schlumberger, and JOHN CRANE.Exported to the United States, Europe, Asia and Asia,The standard parts of the sucker rod pump produced by our company are well-selected, precision-made, stable in quality and excellent in performance, .Your Premier Downhole Pump Fittings Manufacturers And Suppliers.Valve Rods Valve rod materials include steel, alloy steel, stainless steel and bra