API 7-1 certificated Kelly Valve Uper type and Lower type very very good quality
- Manufacturer: Kelly
Kelly Valve Kelly valve is a manually operated ball type valve for the drill stem, divided into upper and lower sections. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly. The...
$600 USDDongying, China
API 7-1 certificated Kelly Valve Uper type and Lower type famous
- Manufacturer: Kelly
Kelly Valve Kelly valve is a manually operated ball type valve for the drill stem, divided into upper and lower sections. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly. The...
$600 USDDongying, China
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