Seal rings made from polytetrafluoroethylene, also known as "the plastic king," offer excellent sealing properties, superior resistance to high temperatures, high pressures, and corrosion. They are widely used in industries such as chemicals, petrochemicals, textiles, metallurgy, electrical power, national defense, construction, and machinery mining. They have become ideal sealing components for various standard and non-standard anti-corrosion equipment and accessories, indispensable in production processes.