BEIJING TOPTECH CONSTRUCTION TECHNOLOGY CO., LTD.
Address: Rm 5A, Building #1, FengLinLvZhou, Chaoyang Dist., Beijing, P.R.China
Tel:010-85913261 85913262
E-mail:toptech_sales@163.com
Concrete Pepair & Protection:www.toptechchina.com
Waterproofing:www.toptech-wp.comFlooring:www.toptech-fl.com