... StructureThe wound style gasket consists of "V-shape"(or"W-shape")metal tape and nonmetal tape,which are overlapped each other and wound ... continuously.To fasten the metal tape,both its ... and outer rings.2. Normally matrial used:A.Steel tape:08F,0Cr18Ni9(304),0Cr18Ni9Ti,1Cr18Ni9Ti(321),0Cr17Ni12,M02(316),00Cr17Ni14M02 ...