... Seamless steel pipe for low and Medium pressure BoilerGrade:10,20 StardandGB3087-2008,ASTM A179,ASTM A192,ASTM SA179,SA192 ... ,ASTM A161-946. ApplicantSeamless steel pipe for Petroleum CrackingGrade:10,20,12CrMo,15CrMo,1Cr2Mo,1Cr5MoStardandGB9948-2006,JIS G3441-19887. ApplicantSeamless ... for conveying water,petrolem,gas and other common fluids.5), ASTM A179 For tubed heat exchanger and similar heat ...