... panel,economizer,reheater,superheater and steam pipeline of boilers.Seamless pipe StandardTrademarkChemical componentsMechanical propertyCSiMnP,SCuNiMoCrVTensile ... -200018-530*3-40Fertilizer making equipment and pipe lineLow and mediun pressure boiled pipe10,20GB3087-199910-530 ... 40Over-heat pipe for low and medium pressure boiler,boilling water pipe,locomotive somke pipe(big and small)Fluid ...