Tangshan City Main Urban Area Underground Pipe Network And Supporting Facilities Renovation And Upgrading Project (Phase I) - Tangshan City Lunan District G3 Unit Rainwater And Sewage Pipe Network And Supporting Municipal Facilities Construction Project (Huayuan Street, Branch Road 14 And Branch 18) Construction Drawing Review And Testing Foundation Pit Monitoring, Pipeline Dynamic Measurement, List Control Price Preparation (Double-Blind Review)