... 21.3--1250mm 3)Thickness:1.8--60mm 4)API5L.ASTM-A53,BS1387-85,JIS-G3444,GB/T3091-2001,etc. ... 1.8-14.27mmMaterialQ195,Q215,Q345,20#,10#,16Mn.etcStandardAPI5L.ASTM-A53,BS1387-85,JIS-G3444,GB/T3091-2001,etc.10 ... N80,CrB,X42,X46,X52,X56,L245,L290,L360,12Cr1MoWvTIB,J55,K55,L80,P110,1Cr18N19T1,0Cr18N19,304,321,316,3161LengthAs per ... etc.We sincerely hope to establish long-term business relationship with you.