Silem mechanical science ltd. Has no registered address on the fifth floor of building b47, building 17 fouan business street, huang town, houang lake district, nishi city, with the registration authority being the administrative approval board for lake coast district, nishi city, represented by legal persons and covering general projects: technical services, technology development, technical advice, technical exchange, technology transfer, technical promotion; sale of machinery and equipment; development of machinery and equipment; repair of general equipment; sale of instrumentation forms; sale of mechanical parts, parts and components; industrial design services; installation services for general mechanical equipment; sale of moulds; wholesale parts of vehicles; wholesale distribution of gold products; sale of specialized packaging equipment; sale of specialized equipment for pharmaceuticals; sale of specialized equipment for oil refining, chemical production (in addition to lega...