Seamless carbon steel pipe 1.MOQ 5MT 2.OD: 10.3-700mm 3.WT:0.8-70mm 4.Grade:10#-45#,A53-A369,St35-St52,Q195-Q345 Seamless carbon steel pipeDetails1.Standard: BS 1387, BS 1139, BS EN10025, BS EN 39,etc 2.Grade: 10#-45#, 16Mn, A53-A369, ST35-ST52, Q195,etc Grade: 20#, 16Mn, A53(A,B), St37, St52, St42,etc3.Port: Tianjin or Qingdao China (Mainland) 4. Secondary Or Not: Non-secondary 5.Technique: hot ...