30CrMnSiA Grade Drilling Pipe: Corrosion-Resistant, High-Strength & Weldable Wellbore Solution Engineered for medium-high pressure, weakly corrosive, and dynamically loaded well conditions, the ...مشاهده بیشتر
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EN10305-1 Steel Oil Well Pipe 30CrMnSiA Seamless Steel Drilling Rod Tube with Low Eccentricity