China Railway Seventeenth Bureau Group Fourth Engineering Co., Ltd., established on 1993-04-15, Business scope includes licensed projects:Various construction activities,General contracting of housing construction and municipal infrastructure projects,Construction engineering design,Quality inspection of construction projects,Construction labor subcontracting,Building Intelligent Engineering Construction,Production of Prestressed Concrete Railway Bridge Simply Supported Beam Products,Construction of fire protection facilities(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Municipal facilities management,Engineering Management Services,business training(Does not include education and training,Vocational skills training and other licensed training),General machinery and equipment installation services,Machinery and Equipment Leasing,electronic,Mechanical equipment maintenance(No special equipment),Special Equipment Repair,Processing of timber and timber components for construction,Mechanical Parts,Parts processing,Machinery sales,Construction machinery and equipment rental,Sales of concrete structural components,Foreign contracted projects,Landscaping engineering construction,Domestic Freight Forwarding,Purchasing agency service,housing lease,Non-residential real estate leases,Sales of building materials,Metal Material Sales,Metal material manufacturing(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)