Picture 1: electronic building in QingHai provice 
Picture 2: Install the equipments 
Picture 3:Debugging the equipments 
Picture 4:Testing the software of C-MARK digital audio 
Picture 5:Works well,has rewarded by our customers
SHENZHEN BAO YE HENG CO., LTD
E-Mail：helen.zhou@c-mark.com.cn
Add： Room 301, Building A, No. 10, Zhuangfu Road, Xinzhuang Community, Matian Street, Guangming District, Shenzhen (Tongfuhan Haida Innovation Park)
Copyright：SHENZHEN BAO YE HENG CO., LTD
ICP：08016907-3
Guangdong Public Security Preparation: NO. 44030402000243
