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[ Manufacturer Trader ]Main business are Programme-controlled telephone exchange
[ Manufacturer ]Main business are Electrocommunication products
[ Manufacturer ]Main business are Programme-controlled telephone exchange, Ground temperature central air conditioner, Monitor
[ Manufacturer ]Main business are Thermistor
[ Manufacturer ]Main business are Communication equipment
[ Manufacturer Trader ]Main business are Group telephone, Programme-controlled telephone exchange.
[ Manufacturer Trader ]Main business are Programme-controlled telephone exchanger
[ Manufacturer ]Main business are Program-controlled telephone switching system, Banknote counter, Four-unit telephone charging management system.
[ Manufacturer ]Main business are Communication product
[ Manufacturer Trader ]Main business are Group telephone, Programme-controlled telephone exchange, Telecommunication equipment fittings, Building electric control lock intercommunication system