The registration address of henan centre line technology engineering ltd. Is located in the schoolyard of the zhongyang township, in henan province, at a 500-metre east junction junction of iron and fibres; sale of fibres and plastics; sale of plastics; development of new materials; technical services, technology development, technical advice, technology exchange, technology promotion; installation of general machinery equipment; retailing of valves and rotors; sale of special equipment; sale of machinery equipment; sale of building waterproof products; sale of anti-combusting materials; management of specialized equipment; management of municipal facilities; production of new materials; production of technical equipment; technical services, technical advice, technology exchange, technology promotion; supply of general machinery; supply of specialized equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of technical engineering equipment; supply of equipment; supply of technical engineering equipment; supply of technical engineering equipment; and technical engineering services; supply of technical engineering equipment; and technical engineering services; supply of technical engineering services; and engineering services