... ,GB,JIS,DIN,API 4.Material: Q195,Q215,Q235,Q345,SS440,20#,45# 5.Type: Welded type or seamless type 6.Surface ... and other countries. Our products are in accordance with API SPEC 5CT,API SPEC 5L,ASTM A53,EN10217,EN10219,EN10255, GB/T9711.1 ... EndPlain ends or bevel ends,plastic caps.TypeWelded type or seamless typeStandardASME,GB,JIS,DIN,ENMaterialQ195,Q215,Q235,SS440,20#,45 ...