Tungsten alloy ball is small in volume but very dense, which means the product can be used in various fields requiring small but heavy parts, such as the counterweights for golf club, fishing weights, counterweights for military applications, projectiles in the missile weapons, armor piercing ammunition, hunting pellets, prefabricated fragments, the missile weapons, armor piercing ammunition; counterweights for oil logging; also some fields concerning with precision industry, such as mobile phone vibrator, clock cube, self-winding watches, anti-vibration toll holders, flywheel weights, etc. Heavy tungsten alloy balls or tungsten weight is widely used in weight or balance industrial, and in military.
A cluster munition is a form of air-dropped or ground-launched explosive weapon that releases or ejects smaller submunitions. Commonly, this is a cluster bomb that ejects explosive bomblets that are designed to kill personnel and destroy vehicles. Other cluster munitions are designed to destroy runways or electric power transmission lines, disperse chemical or biological weapons, or to scatter land mines. Some submunition-based weapons can disperse non-munitions, such as leaflets.
Because cluster bombs release many small bomblets over a wide area they pose risks to civilians both during attacks and afterwards. During attacks, the weapons are prone to indiscriminate effects, especially in populated areas. Unexploded bomblets can kill or maim civilians and/or unintended targets long after a conflict has ended, and are costly to locate and remove.
Modern cluster bombs and submunition dispensers are often multiple-purpose weapons, containing mixtures of anti-armor, anti-personnel, and anti-materiel munitions. The submunitions themselves may also be multi-purpose, such as combining a shaped charge, to attack armour, with a fragmenting case, to attack infantry, material, and light vehicles. Modern multipurpose munitions may also have an incendiary effect.