stainless steel flange 1) Grade: 321, 304, 304L, 316, 316L, ... on. 2) Standards: /ASTM/ASME/DIN/JIS and etc Stainless steel flange Features:1) size: DN10-DN 1200,150#-2500# ... , boiler heat-exchanger and other fields. 5.packing:standard export packing.6.Payment:by L/C sight or T ... .type stainless steel flange sizeDN10-DN 1200,150#-2500#grade321, 304, 304L, 316, 316L, 317, 317L,310s,904L etc.standard/ASTM ...