Product Name: Valve Gland Packing
Type: Gland Packing
Material: Carbonized Fiber
Size: 10 mm * 10 mm
Length: 5 Meters (each Roll)
Pressure Rating: Up to 450 kg/cm²
Temperature Resistance: Up to 850°C

Source: https://www.landeepipefitting.com/valve-gland-packing-carbonized-fiber-10-10-mm-5-meters.html