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| Tel | 21229738 |
|---|---|
| Fax | 39148476 |
| info@gemma.com.hk | |
| Website | http://www.gemma.com.hk |
| Address | Unit 502B, 5/F, Tower A, Hung Hom Commercial Centre, 37-39 Ma Tau Wai Road, Hunghom, Kowloon, Hong Kong |
| Contact Person | Ms. Ng Man Ki |
| Title | Manager |
