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- Roller Kelly Bushing
- Roller Kelly Bushings are used for 171/2-491/2inch rotary tables. They are designed and manufactured according to API Space 7k. The Pin Drive Roller Kelly Bushing porvides the following advantages:Pulling out or feeding off string can be done while ...
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Shaanxi Rongle Petroleum Machinery Co.,ltd
[Verified]
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Negotiable
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