Abstract: : building water supply and drainage engineering construction and installation of the project is an important part, its installation quality of will directly affect people's use.
䧝摘要：建筑给排水工程是建筑安装工程的重要组成部分，其安装质量的好坏将直接影响人们的使用。
The special project department is specialized in the design, installation, debugging and maintenance of building fire control security systems.
特种工程部专业从事建筑物消防安全系统的设计、安装、调试及维护工作。
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