stainless steel flanges

1，Inplement standard:ASME\ANSI B16.9 GB12459 GB\T13401 SH3408-96 SH3409-96 Non-standard is available 2， Material Quality of Product:304,304L,316L,321,347 ect. Diameter range:1\2’’ -48’’ 3，Sealing surface typeFF,RF,FM,M,T,G,TH,RJ ,PL 4，Making methods:IF,SW,Th,PJ,PJ\RT,WA,SO