AISI 4130 Oil Well Drill Pipe , Seamless Alloy Steel Pipe for Casing Application Description Our AISI 4130 (30CrMo) seamless alloy steel pipes are engineered to meet the rigorous demands of oil and ...مشاهده بیشتر
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AISI 4130 Oil Well Drill Pipe , Seamless Alloy Steel Pipe for Casing Application