1.ASTM,A106/A53,GR.B 2.O.D:1/4"-38" 3.W.T:2.24_14mm 4.CER: ISO9001-2008/API 5L Cangzhou Rize Pipe Manufacturing Co.,Ltd DescribeERW Steel PipeMaterial 10# 20# 45# 16Mn , ST52,SAE1220 ,etcLengthAs customers' requirementO.D1/4"-38"W.T2.24-14mmSurfaceblack painting, anti-corrosion oil, galvanized or as per customers' requirementEndBoth ends warpped with plastic bag or as per customers' ...