Tel: 025-84609708 Postal code: 2 100 16.
2. Jiangsu Provincial Technical Supervision Jewelry Quality Inspection Station, No.700 Zhujiang Road, Nanjing
Tel: 025-848044 18 Postal code: 2000 18.
3. Jiangsu Provincial Bureau of Technical Supervision Nanjing University Jewelry Product Quality Inspection Station No.22, Hanjiang Road, Nanjing (Nanda Protestant Building/room KLOC-0/04)
Tel: 025-3593789 Postal code: 2 10093.