China Railway Port and Navigation Bureau Group Co., Ltd., established on 1992-10-17, Business scope includes port and waterway engineering,Blasting and demolition works,Earthwork,Foundation and Foundation Engineering,railway engineering,bridge engineering,Road construction,tunnel Engineering,Municipal public works,construction work,Steel structure engineering;Design of the above works,technical consulting,technology development;Construction machinery and equipment,member,steel structure,Development of building materials,Production,Sales,lease;Import and export,Technology Import and Export.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)