Mining extraction; heating equipment installation and repair; burner maintenance and repair; repair or maintenance of power distribution or control machines and equipment; interference suppression services for electrical apparatus; installation and maintenance of photovoltaic installations; furniture restoration; disinfecting of photovoltaic solar module; repair of power lines; cell phone battery charging services

Heating equipment installation and repair; burner maintenance and repair; installation and maintenance of photovoltaic installations; furniture restoration; repair of power lines

Providing and monitoring of prices and operational data for electronic price signs for business purposes