stainless steel flange 1) Grade: 321, 304, 304L, 316, 316L, 317, 317L,904L and so on. 2) Standards: /ASTM/ASME/DIN/JIS and etc Stainless steel flange Features:1) size: DN10-DN 1200,150#-2500#2) Grade : Grade : 301, 321, 304, 304L, 316, 316L, 317, 317L,310s etc3) Standards: /ASTM/ASME/DIN/JIS and etc 4) Applications range: for use in the petroleum, chemical, medical equipment, boiler heat- ...