... Q195,Q235,Q345 etc ms steel pipe1.Application of ms steel pipe:structure pipe2.OD of ms steel pipes:21.3mm -219.1mm3.W ... .T. :0.5mm-8.0mm4.Material :Q195,Q235,Q345,carbon steel pipeerw steel pipems steel pipems pipes ms steel ... Days .Company info.We ,Tianjin wenyun Steel Pipe Co.,Ltd is a professional and reputed manufacture, for carbon steel welded pipes and galvanized