The latest product, three-dimensional universal drag chain TZA series Cangzhou Longcheng Machinery Accessories Co., Ltd. was established in 2012, located in Cangzhou economic and Technological Development Zone, Hebei Province. The company is good at R & D and production of drag chain, machine tool protective cover and machine tool work light. There are more than 2000 kinds of drag chain products, including conventional drag chain, high-speed silent drag chain, S-type drag chain and three-dimensional motion drag chain;