Product Name: SS 304 Spiral Wound Gaskets
Type: Spiral Wound Gasket
Standard: ASME B16.20
Size: 6 Inch
Pressure: Class 600 LB
Material: SS 304 + Graphite Filler, SS 304 Outer Ring

Source: https://www.landee.cn/ss-304-spiral-wound-gaskets-6-in-cl600-lb-graphite-filler.html