... UNI/BS/JIS 3.Fast delivery and high quality 600lb rf flange:Details of the ProductsHebei Hanghao High-pressure Flange ... , 0Cr19Ni9,00Cr19Ni11,00Cr17Ni12Mo2, 00Cr17Ni14Mo2ApplicationNatural gas , petroleum, chemical industry , electric power , metallurgy , thermodynamic fields, water supply engineering , steam heating , hydroelectric ... of the products instead of only low price! 600lb rf flange