Tungsten carbide balls are used in high-end industries such as precision bearings, instruments, meters, ballpoint pen tips, spray coating machines, water pumps, mechanical components, sealing valves, brake pumps, punching and extruding holes, oil fields, hydrochloric acid laboratories, hardness testers, fishing equipment, counterweights, decoration, and precision machining. Tungsten carbide balls mainly include blanks, precision-ground balls, punch-hole balls, bearing balls, valve balls, non-magnetic balls, Monel balls, through-hole balls, metering balls, color-scraping balls, etc. Various types of tungsten carbide balls are further categorized into specific applications based on their actual uses. For example, tungsten carbide balls for bearings are divided into different types such as deep groove balls, cylindrical rollers, self-aligning rollers, self-aligning balls, needle rollers, angular contact balls, thrust balls, thrust rollers, tapered rollers, and spherical outside surface balls.