Product Name: Basic Type Spiral Wound Gasket
Construction: Uniform Winding of Metal Strip and Flexible Graphite
Materials: Metal Strip, Flexible Graphite
Compression Deformation: ≥ 3.42 mm
Application: Suitable for Tongue & Groove Flange Sealing
Source: https://www.magpievalves.com/basic-spiral-wound-gaskets-metal-strip-flexible-graphite.html