Tel：400-025-3200

Email：sale@xfnano.com

headquarter address：Building 9, Phase I, Zifeng Research and Innovation Center, No. 29, Buyue Road, Pukou District, Nanjing City, Jiangsu Province

R & D Center：National Science and Technology Park of Nanjing University, Gulou District, Nanjing City, Jiangsu Province

operating hours：AM 8:30-12：00 PM 13：30-17:30 (Closed on weekends and national statutory holidays)

National Customer Service Hotline：400-025-3200 (Free long distance charges)