1. Manufacturer: Jiancheng Bicycle (Taicang) Co., Ltd., trademark: Jiancheng, model: TDR007Z, TDL06Z, TDN006Z;

2. Manufacturer: Tianjin Zhengyi Bicycle Industry Technology Development Co., Ltd., trademark: BERJE, models: TDR01Z, TDR06Z, TDP02Z, TDP06Z, TDP01Z, TDP07Z;

3. Manufacturer: Tianjin Aide Technology Development Co., Ltd., trademark: Eagle Eagle, model: TDL02Z;

4. Manufacturer: Tianjin Zhongyang Schunda Motorcycle Co., Ltd., trademark: Schindler, model: TDN01Z, TDN02Z, TDL01Z, TDR09Z;

5. Manufacturer: Tianjin Jiashitong Motorized Bicycle Factory, trademark: Honda Ivette, model: TDP03Z, TDN01Z, TDH01Z, TDR01Z;

6. Manufacturer: Tianjin Haixing Electric Bicycle Factory, trademark: Yueyou , Model: TDN08Z, Trademark: Laoba, Model: TDL01Z, TDP03Z, TDL02Z, TDR06Z, TDR07Z, TDN08Z, TDP04Z, TDP05Z;

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There are too many. You can check it out yourself: /chaxun/xingcheng-1.asp?id=38990, this is the website of the Beijing Municipal Bureau of Industry and Commerce.