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Oilfield API Sucker Rod Pump Plunger
The plunger is main parts of subsurface sucker rod pump, it has two
type of with groove and without groove.
Technical Specifications
Code explaination to the above:
1)“XX” represent Material identification symbol;
2)L represent standard strength for plunger;
3)The outer surface of the plunger can be processed with annular
grooves based on the well conditions.
Photo: