Repair or maintenance of bathroom facilities; repair or maintenance of toilet bowls, tanks, water valves; repair or maintenance of toilet seats with washing function; repair or maintenance of system-kitchen, washstands and other interior furniture; installation of bathroom, toilet and kitchen equipment; installation and repair of electric appliance; machinery installation, maintenance and repair; construction and renovation of building; interior reform; painting, interior and exterior; plumbing and plastering; construction consultancy; bathtub and bath boiler cleaning; cleaning of building, exterior surface or interior; repair or maintenance of electric lighting apparatus; rental of construction and building equipment; laundering; tile laying, brick laying or block laying; vehicle repair and maintenance; upholstering.;