1.seamless steel pipe 2.ISO API approved 3.Market ... price we are specialised in seamless steel pipe: We can produce different standard pipes like ASTM,ANSI,API,JIS, ... and the materials of them are carbon steel, alloy steel and stainless steel.Product detail:NameSeamless steel pipeBrand nameBohaiStandardASTM A53, ASTM A106, ... zone, central north road,Tanggu Tianjin China carbon seamless steel pipe