HQ China,Huangdao Qingdao
MFG,R&D Wangtai factory Qingdao,Yancheng factory Jiangsu
SALES & FAE Shanghai,Shenzhen,Seoul, Korea,Tokyo, Japan
Tel: 0532-86109156 Tel:0532-58707222
Fax:0532-86107727
E-mail: lg@qdyesh.com
Web: www.qdyesgroup.com
COPYRIGHT ©2018 Qingdao Yuansheng Optical Technology Co., Ltd All Rights Reserved. Powered by:Hicheng