+86-010-88495259
Room 08-1, 9/F, Building 1, No 25, South Landianchang Road, Haidian District, Beijing, China
+86-021-51791348
Building 5, No.399 Keyuan Road, Pudong New District, Shanghai, China
+86-760-85288800
No.9,Heqing Road,Tsui Hang New District,Zhongshan,Guangdong,China
+852-23850111
7/F,No B,Ever Gain Centre,28 On Muk Street,Shatin,N .T Hong Kong
+886-2-2657-7370
10/F,No.12,Wenhu Street, Neihu District,Taipei
1737 N. First Street, Suite 680, San Jose CA 95112
Phone:+86-13510641627
Wechat:Longsys_electronics
e-mail:marcom@longsys.com