... 14mm 4.Material:Q195,Q235,Q345 q 235 erw carbon steel pipe1.Application of steel pipe:structure pipe2.OD ... erw steel pipe:20mm -325mm3.W.T. of carbon steel pipe:0.3mm-14mm4.Material of erw steel ... pipe:Q195,Q235,Q345,carbon steel pipeerw steel pipesteel pipe carbon steel pipeO.DO.D toleranceW.TThickness ... is a professional and reputed manufacture, for carbon steel welded pipes and galvanized