Shenzhen Sanhuan lock Co., Ltd.   

Shenzhen Sanhuan lock is the best Shenzhen lock, 1, open, repair all kinds of safe insurance, modify password. 2, the opening of Chinese and foreign each car locks. 3, open, repair all kinds of anti-theft lock, password lock, the filing cabinet, fingerprint lock, chip lock, boss table lock, stationery cabinet lock etc.. 4, to undertake the gating system installed electric control lock, glass door, building intercommunication, fingerprint lock, spring and other electronic induction. 5, installation, change the locks and lock core. 6, repair of anti-theft door, rolling gate, pull gate, floor spring, glass door lock, door closer, senior door handles etc..

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