Dufu group Dover, a diversified manufacturer in the United States, was founded in 1947, headquartered in Chicago and listed on the New York Stock Exchange. It has four business departments: energy, communication technology, printing and identification, and engineering systems. Its business covers special industrial manufacturing such as electronic production, industrial printing, automobile, liquid treatment, oil, bearings, as well as energy, environmental protection, and the Internet of things , food safety and other fields ranked 828th among Forbes's top 2000 global enterprises in 2014.
besoo