Mechanical appliances for projecting, dispersing or spraying Tenders , Machinery for mining, quarrying and construction Tenders , Railway mechanical control equipment Tenders , Works for complete or part construction and civil engineering work Tenders , Building construction work Tenders , construction work for cold-storage installations Tenders , construction work for agricultural buildings Tenders , construction work for mountain-rescue building Tenders , Flatwork for zoo Tenders , Construction works for plants, mining and manufacturing and for buildings relating to the oil and gas industry Tenders , Electrical installation work Tenders , Other Electrical installation work Tenders , Plumbing and sanitary works Tenders , Electro mechanical works Tenders , Installation services of electrical and mechanical equipment Tenders , Installation services of mechanical equipment Tenders , Installation of plumbing and heating equipment Tenders , Operation of electrical installations Tenders , Solid Waste management Services Tenders