1) Standard: ANSI, DIN, JIS, UNI, etc 2) Material: 304, 316, 304L, 316L, 321, etc. 3) Types: SO, WN, LWN, SW, Rh, BL, etc ITERMSDESCRIPTIONFlang Typestainless steel pipe flangesSize1/2"-24"Pressureclass150-class2500Seal SurfaceRF, FM/M, T/G, FF, RJFeatureGood strength, tightness and stiffness, high temperature and alternating bending resistanceStandardHG20592--HG20625Application Fieldswidely used ...