Min. Order Reference FOB Price
1 Piece US$200.00 / Piece
Product Description
API 11AX Certificated Subsurface Sucker Rod Pump Working Principle: When the plunger going up, the tube's valve is opened, At the same time, the plunger's valve are closed and oil going up to the tube's lower space. Then the up stroke is end. The tube's valve is closed when the plunger is ...