In the vast universe of industrial materials, an ostensibly ordinary ring-shaped object is quietly rewriting the rules of the game. It is not metal, yet harder than metal; not plastic, yet more resistant to high temperatures than plastic; not rubber, yet more corrosion-resistant than rubber. It is the alumina ceramic ring, hailed as the "industrial teeth".

The last order before the Spring Festival holiday was a custom alumina ceramic ring. Production was originally planned to begin after the holidays. Due to the outbreak of the virus, we extended our holidays and we were unable to process ceramic rings on time.