Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes
Environmental Control ApparatusConstruction services; installation and repair services; mining, oil and gas drilling
Building Construction and RepairScientific and technological services as well as research and design services relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computers and software
Computer and Scientific