Sell SIM CARD backup

SIM CARD backup
7Backup and copy telephone directory of SIM card.
7Volume:32KB(1000 telephone directoryrecords) .
7Slngle machlne operatlon:needn't connect to PC or PDA to operate.
7Copy information of backup machine toany SIM card if user is using different SIM cards in different cities or different countries.
7Lose no information when out of electricity.
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