Bop, Mud Pump, Casing Centralizer manufacturer / supplier in China, offering Seamless Steel Drill Pipe 5 Inch X 15000FT Length, API 5CT Grade E, API 5dp Certified 6-5/8 Inch Drill Pipe with High-Strength Alloy Steel for Deep Well Drilling, Offshore Dual RAM Bop for Ultra-Deepwater Drilling, API 16A Compliant and so on.
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