1. Item:Seamless steel pipe 2. Standard :ASTM A53,GB, ASTMA106, API5L Gr.B 3. Specification: OD: 8-426MM Thickness :1-60MM 4 Item:Seamless steel pipeStandard :ASTM A53,GB, ASTMA106, API5L Gr.BSpecification: OD: 8-426MM Thickness :1-60MMGrade: Gr.BX42, x52,x56,A,B, J55,H80,H 40NORMAL SIZEOUTER DIAMETERSCH40SCH80WALL THICKNESSWALL THICKNESSINCHMMMMMM1”33.43.384.5511/4”44.23.564.8511/2”48.33.685.082 ...