1.seamless steel pipe 2.material:material:ST37,ST35.8,ST44,ST45,ST52 ... the development of product technolog orientation.Seamless Pipe Typeseamless steel pipeSize1/2"-36"Wall thicknessSch5-Sch160XXSStandardDIN1626,1629,1630,17175,2391,2448MaterialST37, ... design available according to requirement2.anti-corrosion and high-temperature resistant with black painting3. All the production process are made ...