Contact Us
BEIJING TOPTECH CONSTRUCTION TECHNOLOGY CO., LTD.
Address:    Room 311, Building #3, Chaoyang Dist., Beijing, P.R.China 
Post Code:100025 
Tel:            86-10-85913261 / 85913262
Fax:           86-10-85913262 
Website:     http://www.toptechchina.com
E-mail:       toptech_sales@163.com