SPIRAL WOUND GASKET MATERIAL GRADE: SS304/SS316 GRAPHITE OUTER/INNER RING GALVANIZATIONHaiderAugust 2, 2024FLANGES & ACCESSORIES SIZE : (1/2″ – 48) CLASS : (#150 , #300 , #600 , #900 , #1500) TYPE: (OUTER/INNER RING) MATERIAL GRADE : SS304/SS316