An air brake or, more formally, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle.
Define industrial union. industrial union synonyms, industrial union pronunciation, industrial union translation, English dictionary definition of industrial union. n. A labor union to which all the workers of a particular industry can belong regardless of their occupation or trade. n a labour organization in which all...
A trade union or trades union, also called a labour union or labor union , is an organization of workers who have come together to achieve common goals; such as protecting the integrity of its trade, improving safety standards, and/or attaining better wages, benefits (such as vacation, health care, and retirement), and working conditions through the increased bargaining power wielded by the creation of a monopoly of the workers.