Address:NO.110, Ruyi South Road, Ailian Community,

Longgang District, Shenzhen City, Guangdong Province
Tel:(+86)-755-89230332

Mob: (+86)-186-88832546

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Headquarters: Shenzhen Tianyan Group has Shenzhen Tianyan Electronics Co., Ltd. and Shenzhen Yumingxing Technology Co., Ltd., and now has two brands: Tianyan and Yuming.

 
Main: student function calculator, point pen, repeater, learning machine related learning consumables and educational equipment industry product solutions
 
Mailing address: No. 110, South Road, Ailian Road, Longcheng Street, Shenzhen, Guangdong, China
 
Group website: www.tyjtw.com
 
First, the switchboard
 
Shenzhen: 0755-28991459
 
Fax: 0755-28996955
 
Email: sztydz@163.com
 
Second, the business negotiation line
 
Domestic business: 0755-28991459 15323758534
 
After-sales contact: E-mail: 139801103@qq.com; WeChat: 15762712587; Tel: 13689515148 (Hong Manager)
 
Email: sztydz@163.com
 
Third, complaints and suggestions
 
Tel: 13510355148/13689515148
 
Email: sztydz@163.com