customized tungsten steel weight plates for the frame of badminton rackets for a well-known domestic badminton racket manufacturer. Using high-purity tungsten alloy powder metallurgy forming, the density reaches 19.05g/cm³, and the weight error of a single weight plate is accurately controlled within 0.02 grams. Through the modular card slot design, players can quickly adjust the balance point of the racket to adapt to different playing styles such as lift and drop attack, and net control and attack. This weight plate helped the partner increase the sales of high-end rackets by 42%, becoming a popular accessory for professional players in competitions.