Min. Order Reference FOB Price
10 Pieces US$120.00 / Piece
Product Description
API 7-1 Crossover Sub of 3-1/2 REG pin x NC38 box Product Description Crossover sub is mainly used to connect upper and lower drill tools in different connectors in drilling operations. Also it can be used to protect other tooling in drill stem (called saver sub) or be used to deliver outgoing air ...