Uplotnitely iz noi silikonovoy reziny, Rivne region.

Red silicone rubber seals
Silicone cords are used:
— For devices for processing and manufacturing food products in the meat-dairy, bakery, and confectionery industries in the temperature range from -50°C to +280°C;(//tractor-service.com)
— For operation in any climatic zones in the environment of air, ozone, electric field in the temperature range from -50 °C to +250 °C (briefly from -60 °C to +300 °C);
— For the sealing of various types of connections of hydraulic, fuel, oil, and pneumatic systems of aviation equipment, for damping oscillations, vibration and noise, as well as isolation of nodes from exposure to dust, light, moisture, heat, electric field and other purposes in the temperature range from -60 °С to +250 °С;
— For vacuum systems.