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Hong Kong Head office:
Address: 11-12, 9TH Floor ,Heng Ngai Jewelry Centre,No 4 Hok Yuen Street East,Hunghom Kowloon, Hong Kong.
Tel: (852) 2521 0029 Fax: (852) 2521 0019
E-mail: info@chinadia.com
China, Shanghai Branch Office:
Room A511, China Diamond Exchange Center,
No.1701 Century Avenue, Pudong, Shanghai 200122, China
Tel: (86) 21 6182 0738� Fax: (86) 21 6182 0731
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