China
 Headquarter:
 Shahe Industrial Park, Changping District, Beijing, China
 Tel: +86-10-6076 9899
 Fax: +86-10-6076 9887-699
 Email: sales@htoelaser.com

 Shenzhen Office:
 C3-402, Kexing Science Park, NO.15 Keyuan Road, Nanshan District, Shenzhen, China 
 Tel: +86-755-3688 9576-802