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Design Specification for Sound Reinforcement System in a Hall GB 50371-2006
154.5 KB 2018-11-01 -
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Code for Quality Acceptance of Intelligent Building Projects GB 50339-2013
379.07 KB 2018-11-01 -
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“Design Specification for Comprehensive Cabling System” GB 50311-2007
1602.92 KB 2018-11-01 -