- Tung Tai Hardware Supplier Co., Ltd
- Address:Golden Dragon Industrial Central, 182-190 Tai Lin Road, Kwai Chung, N. T.
- T. Y. Manufacturing I/E Co. Limited
- Address:Room 3, 24 / Fl, Lucida Industrial Building, 43-47 Wang Lung St,
- MSC PRODUCTION CO. LTD.
- Address:
- Hoyoma Industrial Company Limited
- Address:Lantian Norh Lane
- Tungshun International Group (HK) Ltd
- Address:Rm1007, 10 / F. , Ho King Ctr. , No. 2-16 Fa Yuen Street Mongkok, Hong Kong
- Central Nation Ltd
- Address:Luohu
- LOCKING SOLUTIONS LTD
- Address:Block D, 5 / F Wing Wah Ind'l Building, 677 King's Road, Quarry Bay
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