• To improve buildings,To perfect buildings,  and To change bui
  • Practice, Innovation, Learning, Progress
  • Pursue advanced technology, Lead industry trend
copyright ? 2005-2013 Bergda (Beijing) Construction Co., Ltd. All Rights Reserved.. 
Address:Room1807,Building B,Shi Ao International Centre No.101 North Section Shao Yao Ju, Chaoyang District Beijing 100029
Phone:86-10-84351387 84351287 Fax:8610-84351397 E-mail:bergda01@bergda.com ,
亚洲免费综合色在线视频_日本一本有码无码综合视频_亚洲国产码专区