... of the ProductsHebei Hanghao High-pressure Flange Pipe Fitting Manufacturing Co.,LtdProductsAll kinds of Pipe FittingsStandardASTM , ANSI, DIN, GB, JB/TWall ... , 12CrMoV, 15CrMo , 1Cr13,1Cr18Ni9Ti, 0Cr19Ni9,00Cr19Ni11,00Cr17Ni12Mo2, 00Cr17Ni14Mo2ApplicationNatural gas , petroleum, chemical industry , electric power , metallurgy , thermodynamic fields, water supply engineering , steam ...