600lb rf flange: 1.ISO 9001 Certificate 2.ANSI B16.5/DIN/UNI/BS/JIS 3.Fast delivery and high quality 600lb rf flange:Details of the ProductsHebei Hanghao High-pressure Flange Pipe Fitting Manufacturing Co.,LtdProductsAll kinds of Pipe FittingsStandardASTM , ANSI, DIN, GB, JB/TWall ThincknessSCH20-SCH160MaterialQ235,20#,16Mn , ST45.8, 12CrMoV, 15CrMo , 1Cr13,1Cr18Ni9Ti, 0Cr19Ni9,00Cr19Ni11, ...