Tianjin Xinghe International Trade Co., Ltd. 
Tel：022-87587811 0353-6129976 
Fax：022-87587811 0353-6129976
Adress：Room 623, office building, 40 Tianbao Avenue, Tianjin Free Trade Zone (Tianjin Port Free Trade Zone)
E-mail：admin@tj-xinghe.com

Shanxi HeFa Nano Technology Co., Ltd. 

Telephone: 0353-6981926 

Fax: 0353-6981926 

Address: Economic and Technological Development Zone, Jinzhong City, Shanxi Province 

Email: 18603533611@163.com