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Mailing address：

Shanghai Hengstar Technology Co., Ltd

Room 1705, 17th Floor, Lizhou Building, No. 399 Huancheng East Road, Fengxian District, Shanghai, China

Zip: 201203

Email：

info@hengstar.com  

Phone：

+86-021-61630122

Fax：

+86-021-61630201