... ,stainless steel and alloy steel 3.Standard:ANSI,ASME,JIS forged flange:1.Materials:st37-2,A105,S235JRG2,SS400,P245GH2.Size:1 ... ,Quality control:ISO9001:2008Hebei Hanghao High-pressure Flange Pipe Fitting Manufacturing Co.,LtdProductsAll kinds of Pipe FittingsStandardASTM , ANSI, DIN, GB, JB/TWall ... to customer’s requirements or normal deliveryAuthentification codeISO 9001:2008 forged flange