... A369, ST35-ST52, Q195... Grade: 20#, 16Mn, A53(A,B), St37, St52, St42, S...Place of Origin: Tianjin China ... -alloy Certification: ISO9001-2000 Produc t nameASTM A106 GR.B Cold rolled steel pipeWall Thickness0.7mm-10mmStandardStandard: BS 1387 ... BS 1139, BS EN10025, BS EN 39,etcMaterialQ195,Q,215Q235,Q235B,.Q234BPlace of originTianjin,ChinaQuality gradeFirst gradeLength4m-12mMOQ10MetricTonDeliver Time15 ...