... /UNI/BS/JIS 3.Fast delivery and high quality 600lb rf flange:Details of the ProductsHebei Hanghao High-pressure Flange Pipe ... , ANSI, DIN, GB, JB/TWall ThincknessSCH20-SCH160MaterialQ235,20#,16Mn , ST45.8, 12CrMoV, 15CrMo , 1Cr13,1Cr18Ni9Ti, 0Cr19Ni9,00Cr19Ni11,00Cr17Ni12Mo2, 00Cr17Ni14Mo2ApplicationNatural gas , petroleum ... value of the products instead of only low price! 600lb rf flange