We are offering flanges size12"- 56"descriptionstype: plate, wn, rf, rtj, slip-on, thread, etc.Ansi b16.5 class150 , class300, class600, class900bs4504, pn10, pn25, pn40din2576, pn10, pn25, pn40jis 5k 10k 16k 40kmaterialsastm a105, c22.8, st37.2, ss304, 304l , ss316, 316l, ductile iron, cast steel, etc.