Min. Order Reference FOB Price
1 Piece US$2.00-48.00 / Piece
Product Description
API Downhole Tool Polished and Sucker Rod Couplings for Oil Well Polished rod couplings are designed for connecting of the polished rod to the top rod of the string. Contrary to rod couplings, polished rod couplings have a female cone that eliminates the coupling twist-off in the course of ...