37 Installation, maintenance and repair of industrial furnaces; machinery installation, maintenance and repair; installation, maintenance and repair of semiconductor manufacturing, processing and production equipment, machines and apparatus; installation, maintenance and repair of display manufacturing, processing and production equipment, machines and apparatus; installation, maintenance and repair of solar battery manufacturing, processing and production equipment, machines and apparatus; installation, maintenance, and repair of measuring or testing or inspection machines and instruments; providing information on machinery installation, maintenance and repair