Civil engineering cost: the cost of water supply, heating, sanitation, ventilation, gas and other housing construction projects and equipment included in the housing project budget, as well as the cost of installation and oil decoration projects such as pipelines, electricity, telecommunications and cable laying in the construction project budget. Equipment foundation, pillar, workbench, chimney, water tower, pool, ash tower and other construction projects, as well as various kiln masonry, metal structure engineering costs. Site leveling, engineering and hydrogeological investigation, demolition of original buildings and obstacles, temporary water, electricity, gas and roads for construction, site cleaning after completion, environmental greening and beautification, etc. Expenses for mining, shaft extension, open-pit mining, oil and gas drilling, railways, highways, bridges, reservoirs, dams, irrigation canals and flood control works. Equipment purchase fee. Expenses for equipment, tools and appliances purchased or made by ourselves for construction projects. Equipment purchase fee = original equipment price+equipment transportation and miscellaneous fees. Equipment transportation and miscellaneous fees are mainly composed of transportation and miscellaneous fees, packaging fees, handling fees of equipment supply and marketing departments, and procurement and storage fees. The installation cost includes the assembly and installation of various mechanical and electrical equipment, the installation of workbench and ladder connected with the equipment, the laying of pipes attached to the installation equipment, the insulation, painting, heat preservation and adjustment test of the installation equipment. Management expenditure incurred by the project construction unit from the date of project preparation to the date of handling the final financial accounts. Including: staff salaries and related expenses, office expenses, office space rental fees, travel and transportation expenses, labor protection fees, tools and appliances use fees, fixed assets use fees, production workers recruitment fees, technical books and materials fees (including software), business entertainment fees, site allowances, completion acceptance fees and other management fees.