新界葵涌青山公路453-457號葵涌段/葵秀路8-10號瑞森工業大廈11字樓B工場 Factory B, 11/F, Shui Sum Industrial Building, Nos. 453-457 Castle Peak Road Kwai Chung, Nos. 8-10 Kwai Sau Road, Kwai Chung, NT