Min. Order Reference FOB Price
20 Pieces US$20.00-200.00 / Piece
Product Description
Crossover Sub Dth Hammer Bits Coupling Sleeves Pin - Box Drill Pipe Adapters Drilling Tool Api Product Description Our drill pipe adapters (tool joints/crosssover subs) are made of 35CrMo or 42CrMo material, which is quenched and tempered after rough machining, and surface nitrided after ...