Product Name: 24 Inch Spiral Wound Gasket
Type: Spiral Wound Gasket
Design Standard: ASME B16.20
Materials:
Inner Ring: SS 304
Outer Ring: Carbon Steel
Filler: Graphite
Size: 24 Inch, DN600
Pressure Rating: Class 300 LB, PN50
Thickness: 4.5 mm

Source: https://www.landeepipefitting.com/24-inch-spiral-wound-gasket-ss-304-carbon-steel-cl300-lb.html