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 Co.,Ltd ProductO.DW.TStandardLengthSeamless Pipe (Steel Pipe)4''-24''SCH20 30 40 60,STD XS ,80ASTM A106 GR.BASTM A53 GR.BEn10204/3.1b5.8m,6m5-12randomPipe line (API Steel Pipe)3''-18''SCH20 30 40 60 STD XSAPI 5L GR.B X42 X52 X605.8m,6m5-12mrandomERW Steel Pipe 8''-28''SCH20 30 40 60, STD XS, 80ASTM ...