... structure,heat-supply and pile driving projects.Export toCanada, USA, Argentina,Peru, Chile, Colombia, Brazil, Venezuela,Malaysia, Singapore, the Czech Republic, Australia, ... ; ISO9001:Technical Parameters of Seamless Steel PipeA53: Chemical components and mechanical property Stan-dard Trade markChemical componentsMechanical propertyCSiMnP,SCuNiMoCrVTensileStrengthYieldStrengthElongationASTM A106B ...