Purchase Qty. Reference FOB Price
1-9,999 Pieces US$6,000.00
10,000+ Pieces US$200.00
Product Description
Product Description About kelly Kelly is main driver of the whole drill string. It transmits torsional energy from the rotary table through the drill string to the bit at the bottom of the hole. TIANHE Kelly is a long square or hexagonal, precision machined heavy steel bar that is supported by the ...