... Standard:A106 GRB, A53 GRB, API 5L,GRB, A106-B Seamless Steel PipeCompany NameShijiazhuang Beihai Pipe CO.,LTDBusiness TypeMANUFACTURE AND ... .4DIN1629St52DIN1629537Mn5J55 Note1PackingStandard export sea-worthy packing2PaymentT/T and L/C at sight3ApplicationStructure transport gas and oil,making machine part ... A135-A,A53-A,A106-A,A179-C,A214-C,A192,A226,A315-B,A53-B,A178-C,A210-A-1,A210-CDINSt33,St37, ...