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API Rotary Kelly pipe(Square Kelly and Hexagonal Kelly) for oilfield
- Manufacturer: Kelly
Manufactured from AISI 4145H-modified fully heat-treated alloy steel with a Brinell hardness range of 285-341 Kelly is the drive part of whole drill string, it transmit the torsional energy from the rotary table ...
Dongying, China 
API Different models of Pin Drive Roller Kelly Bushing
- Manufacturer: Kelly
Products Description The Pin Drive Roller Kelly Bushing is made up of top cap, bottom seat, shaft, roller, floating ring, transmission pins, fixed bolts, oil cup, etc. 1. Pulling out or feeding off string can be ...
$2,200 USDJiangsu, China
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