Agricultural greenhouses, semi-circular Length 40 meters, width 9 meters 17 arches, center height 3.25 Galvanized steel structure G90 Plastic 200 microns Fiberglass on the facades 138 cm exhaust fans Automatic electrical control panel with temperature sensor Cooling cells, ducts, belts, and tank Half horsepower submersible pump Agricultural greenhouses, straight sides Length 40 meters, width 9 meters 17 arches, center height 4 meters, side height 2.25 Galvanized steel structure G90 Plastic 200 microns Fiberglass on the facades 138 cm exhaust fans Automatic electrical control panel with temperature sensor Cooling cells, ducts, belts, and tank Half horsepower submersible pump Shade net nurseries Seedling incubators Concrete fish tanks with covers Insulated earthen fish ponds Multi-arch agricultural greenhouses Greenhouses for poultry, quails, and pigeons