China Railway Fourth Institute Group Engineering Construction Co., Ltd., established on 1994-11-10, Business scope includes all kinds of foundation and foundation engineering;Municipal public works;Road construction;Special correction and translation engineering;Special structural reinforcement engineering;Waterproof, anti-corrosion and thermal insulation engineering;bridge engineering;tunnel Engineering;Earthwork;Environmental Engineering;Waterproof and drainage works;Engineering Management Services;Various construction activities;Geotechnical Investigation,Geotechnical Design,Geotechnical Engineering Geophysical Prospecting Testing Testing Monitoring Engineering,Geotechnical Construction and Management;Construction Engineering Survey;Geological Hazard Survey,Design of geological disaster prevention and control,Construction and supervision of geological disaster remediation;On-site management and supervision of geological survey;Controlled blasting scientific research and technical services;Blasting design and construction,Blasting Safety Assessment,Blasting Safety Supervision;Machinery and Equipment Leasing;project consultancy;Labor dispatch(The operating period is consistent with the license),Labor outsourcing;Engineering Materials Sales;Engineering and Technology Research and Experimental Development;New material technology promotion service;Manufacture of new building materials;Railway engineering foundation pile detection;electronic computer software,the hardware,communication device(Without satellite ground receiving facilities,Does not include wireless communication transmitters),Electronic appliances,General machinery independent research and development,production and sales.(Involved in licensing projects,It should be operated after obtaining the permission of the relevant department)