LSAW PIPE 1.Standards ANSI / API / AWWA / DIN / BS / JIS and etc. 2. ... :Q235B,Q345B,ASTM A53GrB, X42-X70,etc.1) Standards:GB/T3091-2008,GB/T9711.1, API5L etc.2) Sizes:a)OD:325mm ... ,ASTM A53GrB, X42-X70,API5L GrB,etc.1) Standards:GB/T3091-2008,GB/T9711.1, API5L etc.2) Sizes:a)OD:325mm ...