Min. Order Reference FOB Price
1 Piece US$500.00-3,000.00 / Piece
Product Description
Square Kelly Pipe Hexagonal Kelly Pipe Product Description Kelly is the drive part of whole drill string, it transmits the torsional energy from the rotary table to the bit in the bottom of the hole. Boban precision-machined Kelly is a heavy square or hexagonal steel bar supported by the swivel ...