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7'' Slot Casing Pipes for Olkaria Geothermal Well Drilling
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Oil drilling pipe
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Oil drilling rod
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Friction welding drill rod, Oil drilling rod,Drill rod with specifications API SPEC 5DP and SY T5561 2008
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Friction welding drill rod, Oil drilling rod
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Friction welding drill pipe, Oil drilling pipe,Drill pipe with specifications API SPEC 5DP and SY T5561 2008