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[ Manufacturer Trader ]Main business are Mechanical product
[ Manufacturer Trader ]Main business are High frequency tube
[ Trader ]Main business are Electronic component
[ Trader ]Main business are CATV amplifier module
[ Manufacturer ]Main business are High frequency tube, CATV module, Voltage-regulator tube.
[ Trader ]Main business are Integrated circuit, Diode triode, Tantalum capacitor.
[ Manufacturer ]Main business are Transducer