Product Name: Flange Isolation Gasket Kit
Type: Type F
Size: DN100
Pressure: Class 150 LB
Gasket Material: G10
Washer Material: G10; Carbon Steel Hot-Dip Galvanized

Source: https://www.landee.cn/flange-isolation-gasket-kit-type-f-dn100-cl150-lb-g10.html