... 98, JIS G3441-1994 2.Applicant Seamless steel tubes for liquid serviceGrade 10,20,Q295,Q345 Stardand GB/T8163-2008, ... 9329-2-1997,ASTM A161-946. ApplicantSeamless steel pipe for Petroleum CrackingGrade:10,20,12CrMo,15CrMo,1Cr2Mo,1Cr5MoStardandGB9948-2006, ... JIS G3441-19887. ApplicantSeamless steel pipe for Gas CylindersGrade:34Mn2V,30CrMo,35CrMo,45.8.Application1),API ...