ASTM A519 Alloy Steel Oil Well Drill Pipe, Seamless Chromoly Tubing for Sour Service Applications Description This ASTM A519 Alloy Steel Oil Well Drill Pipe represents the highest standard of ...مشاهده بیشتر
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ASTM A519 Alloy Steel Oil Well Drill Pipe, Seamless Chromoly Tubing for Sour Service Applications