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Hollow Rod

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Hollow sucker rod is a kind of sucker rod with middle channel for oil-stream, through inner hole, they could be filled with various diluents, light oil, preservatives and hot oil to reduce oil viscosity and prevent the oil wells from waxing. Hollow sucker rod can also be used to drive the screw pump.

Hollow sucker rod can be made from AISI 4130, AISI 4135.

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