Beijing Chaoyang District No.7 Men Chuang Mu Qiang No.8 Metal Doors and Windows Engineering No.8 Metal Doors No.13 Plumbing Systems No.14 Plumbing Devices Materials No.19 Gong Cheng Zhuang Xiu No.21 Jian Zhu Nuan Tong No.34 Jian Zhu Mu Qiang Engineering No.35 Water Supply and Drainage Design No.36 Water Supply and Drainage Engineering No.38 Mu Qiang Engineering No.40 Water Supply and Drainage 建筑工程施工总承包 市政公用工程施工总承包 建筑装修装饰工程专业承包