... /AISI/ASTM/JIS pipe line1.Grade:L245,L360,A53,J55,N80 ,X42,X46,X52,X56,X60,X65,X702.End: round3.Package: In ... tubed heat exchanger and similar heat conveying equipments6), ASTM A192 For manufacture wall panel,economizer,reheater,superheater and steam pipeline of boilers. pipe line