Tungsten alloy parts are usually used for the weights of racing cars. Tungsten alloy has high density and small volume, which can improve the sensitivity and controllability of the racing car. Moreover, it has strong wear resistance and long service life. It is easy to process and provides more feasibility for designing tungsten alloy counterweights with multiple specifications and complex sizes.

At present, the decomposition methods of scheelite mainly include acid method, soda method and NaOH method.

For darts, high density is very important, because high density darts can make the center of the darts more stable, therefore it is necessary to process high precision with the darts. Tungsten alloy has good machinability; it can satisfy the fast production of the darts. The tungsten alloy darts have the following advantages.

Bismuth tungstate (Bi₂WO₆) is a layered structure with dielectric, luminescent and ionized conductors. Bismuth tungstate has photocatalytic properties under visible light. Bismuth tungstate can photolysis water and photodegradation organic pollutants under visible light. Therefore, Bismuth tungstate has good application prospects in many related fields.