Installation services include the assembly and placement of production equipment, power equipment, lifting equipment, transportation equipment, transmission equipment, medical laboratory equipment, and various other equipment and facilities, including workbenches, ladders and railings connected to the equipment being installed, as well as insulation, anticorrosion, heat preservation, painting and other engineering work. The installation of engineering operations, as well as insulation, anti-corrosion, thermal insulation, painting and other engineering operations of the installed equipment. Including fixed telephone, cable TV, broadband, water, electricity, gas, heating and other operators to the user of the installation fee, initial installation fee, account opening fees, expansion fees and similar charges.