... JIS pipe line1.Grade:L245,L360,A53,J55,N80 ,X42,X46,X52,X56,X60,X65,X702.End: round3.Package: ... structural steel seamless steel pipeGradeL245,L360,A53,J55,N80 ,X42,X46,X52,X56,X60,X65,X702. Stardand GB/T8162 ... Gas CylindersGrade:34Mn2V,30CrMo,35CrMo,45.8.Application1),API SPCE 5L For the purpose of transportation of gas,water, ... ,reheater,superheater and steam pipeline of boilers. api 5l pipe line