Katalog firm
- NINGBO DABU WELDING TECHNOLOGY Co., Ltd.
- Ningbo Dahongying Biology Engineering Devlopment Limited Company
- Ningbo Dazhong Color Plate Steel Structure Co.,Ltd.
- Ningbo Development Zone Haixin Stationery Co., Ltd.
- Ningbo Donghai Plastics Limited Company
- Ningbo Donglai Chemical Industry Limited Company
- Ningbo Dongwei Imp&Exp. Co., Ltd, Shanghai Branch