Product Name: SS 304 Spiral Wound Gaskets
Materials:
SS 304 (Inner & Outer Rings)
SS 316 (Metallic Strip)
Size: 3 Inch, DN80
Pressure: Class 150 LB, PN20

Source: https://www.landeepipefitting.com/ss-304-spiral-wound-gaskets-stainless-steel-3-inch-150-lb.html