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10/F, 700 Nathan Road, Mong Kok, Kowloon / 26F, New World Tower 1, 18 Queen's Road Central, Hong Kong| Map |
2380 5957(KLN) / 2525 6937 (HK)
info@oavision.com.hk
Monday to Friday：9:am to 6:30pm
Saturday：9:00am to 5:00pm
Sunday and holiday：Off