Contact us

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Tianjin Grewin Technology Co.,Ltd.
Web:www.grewin-tech.com 
Mail: salesmanager@grewin-tech.com
24 Hours Phone: +0086 13072088960
Address: 2# MeiNian Plaza No.16 DongTing Road                                             HeXi Distr,300222,Tianjin China.  

General consultancy:    alice@grewin-tech.com 
 
Sales Technical Service: transformersales3@aliyun.com