Since its establishment in 1989, Chang Ryong Machinery as a company that has produced chip conveyors of each machine tool produced in Korean and overseas, has been meeting consumer's demands through securing experiences, abundant technology and skilled workers for a few decades with optimal prices, delivery and quality based on the irresistible sales activity and momentum. In recent, we have been focusing on producing large chip conveyors that are applied to large precessing machines of the aerospace industry as well as the shipbuilding industry and aerogenerators, and main chip conveyors that transfer each processing chip in a factory to chip handling places outside of the factory, and developing converyors applied to NC and CNC M/C as the screw type.