steel pipe for construction 1)OD:4mm-50mm; ... name-main material-standard-usessize range(mm)stainless steel pipe 0Cr18Ni9 (304),00Cr19Ni10 (304L),00Cr17Ni14MO2(316L),00Cr17Ni12MO2 ... Stainless Steel 4-426×1-40 Structural Pipe 10,20,35,45,Q23516Mn Q345BGB/T8162-2008--for the ... resistant,Low temperature-resistant, corrosion-resistant Seamless pipe for Petroleum, chemical, electric power,Boiler industry16-824 ...